Question

Work out
$3 + 2x {?}^{2}$
for x = 4​

Answer 1

$3 + {2x}^{2} \: where \: x = 4. \\ = 3 + 2 \times {4}^{2} \\ = 3 + 2 \times 16 \\ = 3 + 32 \\ = 35$

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