Algebrahard · Past Paper
Factorize: x^2 - y^2 + 4x + 4
A(x+2+y)(x+2-y)
B(x-2+y)(x-2-y)
C(x+y+2)^2
D(x+4)(x-y)
✓ Correct Answer: A — (x+2+y)(x+2-y)
(x^2+4x+4) - y^2 = (x+2)^2 - y^2 = (x+2+y)(x+2-y).
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