Question

4y^2-16 is that a square of the sum, square of a difference, a product of a sum and difference, or not a special product?

Answer 1

Das is differnce of 2 perfect squaes

for

a^2-b^2, that factors to (a-b)(a+b0


4y^2=(2y)^2
16=4^2


(2y)^2-(4)^2=(2y-4)(2y+4)
square of a differnce