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