Find the following product: 4a(3a + 7b) - Vidyadip

Question

Find the following product:
$4a(3a + 7b)$

✓

Answer

$-4 a \times 3 a+4 a \times 7 b$
$-4 \times 3 \times a^{(1+1)}+4 \times 7 \times a \times b$
$=12 a^2+28 a b$

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