Expand: (8 a+3 b)^2 - Vidyadip

Question

Expand:
$(8 a+3 b)^2$

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Answer

$(8 a +3 b)^2$
$=(8 a)^2+2 \times 8 a \times 3 b+(3 b)^2$
$=64 a^2+48 a b+9 b^2$

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