UrbanPro

Take Class 10 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Solve x^2+2x-8=0

Asked by Last Modified  

Follow 0
Answer

Please enter your answer

BE(Electronics)

x^2+2x-8=0 then factorization splitting middle term we get x^2+4x-2x-8=0 Taking common we get x(x+4)-2(x+4)=0 after that we get (x-2) (x+4)=0 Hence we get x=2 or x= -4
Comments

Founder, Accelerated Learning | 15+ Teaching Years

This is an equation of form ax^2 + bx + c Use the formula for calculating the roots as- x = (-b + (b - 4ac)^1/2 ) / 2a & x = (-b - (b - 4ac)^1/2 ) / 2a Substituting values into the variables you will get- x = (-2 + (2 - 4 x (1) x (-8)) ^1/2 ) / (2 x (1)) & x = (-2 - (2 - 4 x (1) x (-8)) ^1/2...
read more
This is an equation of form ax^2 + bx + c Use the formula for calculating the roots as- x = (-b + (b - 4ac)^1/2 ) / 2a & x = (-b - (b - 4ac)^1/2 ) / 2a Substituting values into the variables you will get- x = (-2 + (2 - 4 x (1) x (-8)) ^1/2 ) / (2 x (1)) & x = (-2 - (2 - 4 x (1) x (-8)) ^1/2 ) / (2 x (1)) On solving the above you will get the roots of the equation as- x = 2 & x = -4 This is the solution for the given quadratic equation. Hope you find this useful. read less
Comments

Professional Tutor with 15 years of experience.

x(x+4)-2(x+4)=0 (x-2)(x+4)=0 x=2 or -4
Comments

Home Tutor

2 because only positive values will be selected
Comments

Teacher by Choice, not by profession

x^2+4x-2x-8=0 => x(x+4)-2(x+4)=0 => (x-2)(x+4)=0 => x= 2, -4
Comments

Deep Classes Nerul West Branch

x = -4 and x=2
Comments

Math Magician

x^2+4x-2x-8=0 or x(x+4)-2(x+4)=0 or( x+4)(x-2)=0 or x=-4;x=2
Comments

BE, R V College Of Engineering, Bangalore.

x^2+4x-2x-8=0 =>x(x+4)-2(x+4)=0; =>(x+4)(x-2)=0 x=-4,x=2
Comments

SME in Mathematics & Statistics

x^2 + 2x - 8=0 x^2 + 4x - 2x - 8=0 x(x + 4) - 2(x + 4) = 0 (x + 4)(x - 2) = 0 x = - 4 or 2
Comments

Tutor

Ms Zeba : The factors given are perfectly alright but the solution is incomplete. The factors (x+4)(x-2)=0,means x=-4 & x=2 give complete solution of given equation.
Comments

View 87 more Answers

Related Questions

Is zero a rational number? Is it possible to write it in the form p/q , where p and q are integers and q ?0?
Of course it is. It is of the form 0/q where q is a non-zero integer.
Yashraj
Which continents of today were part of the Gondwana land?
The Gondwana land included India, Australia, South Africa and South America as one single land mass.
Nishat
what is the fourth law of thermodynamics ?
The fourth Laws - Zeroth law of thermodynamics -- If two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other. First law of thermodynamics...
Kumar Upendra Akshay
1 1
5
What happens when dilute hydrochloric acid is added to iron fillings?
then hydrogen gas and iron chloride are produced. You can see it from following reaction: Fe + 2HCl ------> FeCl? + H?
Vivekchettri
0 0
5
Define Human Development Index?
A composite index measuring average achievement in three basic dimensions of human development-a long and healthy life, knowledge and a decent standard of living.
Nadare
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Maths Home Tutor In Kolkata
Study text book properly and give test regularly.

Application Of Trigonometry
Solve the triangle shown below: Solution: We need to find the lengths of all sides and the measures of all angles. In this triangle, two of the three sides are given. We can find the length...

How to study and learn better
1) Find out where, when and how you learn best: By taking notes? Reading one book at a time? Through all-out effort? Study groups? 2) Enter the role as a student actively, organise your time and the...

Atomic Structure
All substances are made from atoms. Each atom is made of a nucleus - containing protons and neutrons - surrounded by electrons. The atomic number is the number of protons in an atom. The elements are...

How do I get 95% in board exams?
How do I get 95% in board exams? Scoring more than 90% in board exams might seem a difficult task, however with the right study habits and hard work, it is easily achievable. Here in this article we’ve...

Recommended Articles

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Quest Academy is a professional Bangalore based NEET and JEE (Main + Advanced) training institute. The academy was incorporated in 2015 to cater to the needs of students, who aim to crack competitive exams by connecting with the best brains around. The institute helps students enhance their skills and capabilities through...

Read full article >

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 10 Tuition Classes?

The best tutors for Class 10 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 10 Tuition with the Best Tutors

The best Tutors for Class 10 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more