SSC (Marathi Semi-English) 10thMaharashtra State Board
Account
It's free!

User


Login
Create free account


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Solution - Solve the following quadratic equation for x: 4x^2 + 4bx – (a^2 – b^2) = 0 - SSC (Marathi Semi-English) 10th - Algebra

Question

 

Solve the following quadratic equation for x: `4x^2 + 4bx – (a^2 – b^2) = 0`

 

Solution

`4x^2 + 4bx −(a^2 − b^2 )= 0`

`x^2+bx-((a^2-b^2)/4)=0`

`x^2+2(b/2)x=(a^2-b^2)/4`

`x^2+2(b/2)x+(b/2)^2=(a^2-b^2)/4+(b/2)^2`

`(x+b/2)^2=a^2/4`

`x+b/2=+-a/2`

`x=-b/2+-a/2`

`x=(-b-a)/2,(-b+a)/2`

Hence, the roots are `(-b-a)/2 and (-b+a)/2 `

Is there an error in this question or solution?

Reference Material

Solution for question: Solve the following quadratic equation for x: 4x^2 + 4bx – (a^2 – b^2) = 0 concept: null - Solutions of Quadratic Equations by Completing the Square. For the courses SSC (Marathi Semi-English), SSC (English Medium), CBSE
S