Question

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

Answer 1

`(4x+7)^2`

Explanation:

`"this is a "color(blue)"perfect square"`

`(a+b)^2=a^2+-2ab+b^2`

`16x^2=(4x)^2rArra=4x`

`49=(7)^2rArrb=7`

`2ab=2xx4x xx7=56x`

`16x^2+56x+49=(4x+7)^2`