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Simplify frac x 2 - y 2 x y 2 frac x - y 2 3x 3y - WAEC Mathematics 2013 Question

Simplify: \(\frac{x^2 - y^2}{(x + y)^2} + \frac{(x - y)^2}{(3x + 3y)}\)
A
\(\frac{x - y}{3}\)
B
x + y
C
\(\frac{3}{x - y}\)
D
x - y
correct option: c
\(\frac{x^2 - y^2}{(x + y)^2} + \frac{(x - y)^2}{(3x + 3y)}\)

\(\frac{(x + y)(x - y)}{(x + y)(x + y)} + \frac{(x - y)(x - y)}{3(x + y)}\)

= \(\frac{3}{x - y}\)
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