Question

$\red{ \sf{expand \: {(1 + 2)}^{2} }}$
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Answer 1

Answer:

$\sf \to {(x + y)}^{2} = {x}^{2} + 2xy + {)}^{2}$

$\sf{(1 + 2)}^{2}$

$\bf {3}^{2} = 9$

Answer 2

Answer:

$\rm {(1 + 2)}^{2}$

$\rm \to {3}^{2}$

$\fbox{9}$