Question

need help to find power series for

x+4x^2+8x^3+16x^4+32x^5

Answer 1

i know x^(n+1)

Answer 2

@iambatman

Answer 3

it is a power series already

Answer 4

you could write \[x+4x^2+8x^3+16x^4+32x^5
=x+\sum_{k=2}^5 2^{k}x^k\] if you like

Answer 5

thanks