Question
Expand: $(8a + 3b)^2$
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Answer
$(8a + 3b)^2$
$= (8a)^2+ 2 × 8a × 3b + (3b)^2$
$= 64a^2+ 48ab + 9b^2$
$= (8a)^2+ 2 × 8a × 3b + (3b)^2$
$= 64a^2+ 48ab + 9b^2$
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