Solve: (x+y a)^2-(a-b)^2 - Vidyadip

Question

Solve:
$(x+y a)^2-(a-b)^2$

✓

Answer

$(x+y a)^2-(a-b)^2$
$= [(x + y) - (a - b)][(x + y) + (a - b)]$
$= (x + y - a + b)(x + y + a - b)$

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