it is a problem on a test that i missed and cant seem to figure out how to factor
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2 Answers

-x^4+8x^3-16x  factor out a -x

-x(x^3 - 8x^2 + 16)

there are several ways to solve this you can use long division or synthetic division.  Do not forget the place holder in the x place (0x).  this is the factors!  I tried x+1, x-1, x+2, x-2, x-4, x+4, x-8, x+8.  The factors of 16.

by Level 10 User (55.7k points)

x+1, x-1, x+2, x-2, x-4, x+4, x-8, x+8.  The factors of 16.

by

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