Factorise :(a + b)^2- a^2+ b^2 - Vidyadip

Question

Factorise $ :(a + b)^2- a^2+ b^2$

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Answer

$(a + b)^2- a^2+ b^2$
$= a^2 + 2ab + b^2 - a^2 + b^2$
$= 2ab + 2b^2$
$= 2b( a + b )$

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