Algebramedium · Past Paper
Simplify: (x + y)^2 - (x - y)^2.
A2x^2 + 2y^2
B4xy
C0
D2xy
✓ Correct Answer: B — 4xy
(x^2 + 2xy + y^2) - (x^2 - 2xy + y^2) = 4xy.
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✓ Correct Answer: B — 4xy
(x^2 + 2xy + y^2) - (x^2 - 2xy + y^2) = 4xy.
Share this question