Question

4 x square minus 25 is equal to zero quadratic equation solution ​

Answer 1

Solution:

Given quadratic equation:

4x²-25 = 0

=> (2x)² - 5² = 0

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We know the algebraic identity:

a²-b² = (a+b)(a-b)

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Now ,

=> (2x+5)(2x-5)=0

=> 2x+5 = 0 or (2x-5) =0

=> 2x = -5 or 2x = 5

=> x = -5/2 or x = 5/2

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Answer 2

Hey.

Refer the below attachment !

Thanks !