SOLUTION: hi. {{{ (x^7-3)(x^2+8) }}} the directions say to multiply but i need some basic instructions. thank you.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: hi. {{{ (x^7-3)(x^2+8) }}} the directions say to multiply but i need some basic instructions. thank you.      Log On


   

Question 26313: hi. +%28x%5E7-3%29%28x%5E2%2B8%29+ the directions say to multiply but i need some basic instructions. thank you.
Found 2 solutions by Alwayscheerful, Earlsdon:
Answer by Alwayscheerful(414) About Me  (Show Source):
You can put this solution on YOUR website!
I am assuming you have learned FOIL
F irst
O uter
I nner
L ast

+%28x%5E7-3%29%28x%5E2%2B8%29+
Answer:
highlight%28x%5E9%2B8x%5E7-3x%5E2-24%29
Hope this helps!

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
You can multiply these binomials using the method known as FOIL which stands for First, Outer, Inner, Last.
%28x%5E7-3%29%28x%5E2%2B8%29+=+%28x%5E7%29%28x%5E2%29+%2B8%2Ax%5E7+-3%2Ax%5E2-3%2A8 = x%5E9%2B8x%5E7-3x%5E2-24