Question

Use the binomial theorem to expand completely .(x+2y)^7

Answer 1

anyone

Answer 2

Is just the answer OK?

Answer 3

the whole thing

Answer 4

Okay wait.

Answer 5

\[x^7+14x^6y+280x^4+y^3+560x^3y^4+672x^2y^5+448xy^6+128y^7\]

Answer 6

thank you so much Dido

Answer 7

You are welcome :) .

Answer 8

\[(x+2y)^7 =\]\[x^7+14 x^6 y+84 x^5 y^2+280 x^4 y^3+560 x^3 y^4+672 x^2 y^5+448 x y^6+128 y^7 \]