Question

How do you factor `16x^2-56x+49`?

Answer 1

`(4x-7)^2`

Explanation:

We use the Identity `: (a-b)^2=a^2-2ab+b^2`

Given Exp.`=16x^2-56x+49`

`=(4x)^2-2*4x*7+(7)^2`

`=(4x-7)^2`