Question

Find the roots using method of completing square
4x2+x-3

Answer 1

The roots are -1 and 3/4.

Step-by-step explanation:

The expression is:

$4x^{2}+x-3$

Factorize the expression as follows:

$4x^{2}+x-3=4x^{2}+4x-3x-3$

                   $=4x(x+1)-3(x+1)\\=(x+1)(4x-3)$

If (x + 1) = 0, then x = -1.

If (4x - 3 ) = 0, then x = 3/4.

Thus, the roots are -1 and 3/4.

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