Question

4x² - y² +4y-4 factories​

Answer 1

Answer:

Step-by-step explanation:

4x^2 - (y^2 -4y + 4)

= (2x)^2 - (y-2)^2

because a^2 - b^2 = (a-b)(a+b)

so

= (2x - (y-2))(2x+(y-2))

= (2x-y+2)(2x+y-2)

is the factorization