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September 21, 2014

September 21, 2014

Posted by **missfubu-c** on Thursday, October 18, 2012 at 6:13pm.

(x+5y-3z)-(x-4y+4z)

is this right

x^2+1y-7z

2.(4x-1)(x^2+6x-6)

- algbera -
**PsyDAG**, Saturday, October 20, 2012 at 12:34pm(x+5y-3z)-(x-4y+4z) = x+5y-3z-x+4y-4z = 9y - 7z

2. (4x-1)(x^2+6x-6)

(x^2+6x-6)(-1) = -x^2-6x+6

(x^2+6x-6)(4x) = 4x^3 + 24x^2 -24x

Combine like terms.

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