Binomial Expansion

a.

Expand $1+3x)^{-3}$ in ascending powers of $x\,$ up to and including $x^3$

[4]

b.

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

c.

Use your expansion to find the expansion of $2x+1(1+3x)3\displaystyle \frac{2x+1}{(1+3x)^3}$ up to and including $x^3$

[3]

a.

Expand $1+3x)^{-3}$ in ascending powers of $x\,$ up to and including $x^3$

[4]

b.

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

c.

Use your expansion to find the expansion of $2x+1(1+3x)3\displaystyle \frac{2x+1}{(1+3x)^3}$ up to and including $x^3$

[3]

Binomial Expansion Questions