Question

evaluate (a+2b)^3 please
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Answer 1

Answer:

a^3+6a^2b+12ab^2+8b^3

Answer 2

Answer:

$\: {(a + 2b)}^{3} \\ by \: using \: {(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 \times {a}^{2} \times b + 3 \times a \times {b}^{2} \\ {(a)}^{3} + {(2b)}^{3} + 3 \times {(a)}^{2} \times 2b + 3 \times a \times {(2b)}^{2} \\ {a}^{3} + {8b}^{3} + 6 a^2b+ 12a {b}^{2}$