AM-1633

Binomial expansion

A Math · Secondary 4 · Easy · Binomial expansion

Find, in ascending powers of

x

, the first three terms in the expansion of

(1+2x)^5

.

$1+10x+40x^2$
$1+5x+10x^2$
$1+20x+80x^2$
$1+8x+24x^2$

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