4.2 Expanding (a + bx)^n

Find the first four terms, in ascending powers of $x$ , of the binomial expansion of

(3+16x)9\left(3 + \frac{1}{6}x\right)^9

Give each coefficient as a simplified fraction or an integer where possible.

[4]

Find the first four terms, in ascending powers of $x$ , of the binomial expansion of

(3+16x)9\left(3 + \frac{1}{6}x\right)^9

Give each coefficient as a simplified fraction or an integer where possible.

[4]

4.2 Expanding (a + bx)^n Questions