SOLUTION: (x-1) (x4+x3+x2+1) answer: x^5-x^2+ x-1 any math mathician can come up with a full break down of how my math book came up with x^5-x^2+x-1 as an answer

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: (x-1) (x4+x3+x2+1) answer: x^5-x^2+ x-1 any math mathician can come up with a full break down of how my math book came up with x^5-x^2+x-1 as an answer      Log On


   



Question 172005: (x-1) (x4+x3+x2+1)

answer: x^5-x^2+ x-1
any math mathician can come up with a full break down of how my math book came up with x^5-x^2+x-1 as an answer

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
(x-1) (x4+x3+x2+1)
:
Each degree has to be represented, so write it (x^4 + x^3 + x^2 + 0x + 1)
:
Multiply it the old fashioned way:
x^4 + x^3 + x^2 + 0x + 1
....................*..............x - 1
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answer: x^5-x^2+ x-1