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November 20, 2014

November 20, 2014

Posted by **Melissa** on Sunday, October 2, 2011 at 2:30am.

1.(x^2-3x+4)(-x^2+3x-4)

2.3(2x-5)-9(4x-5)

- math -
**fate**, Sunday, October 2, 2011 at 5:19am1. -x^4+3x^3-4x^2+3x^3-9x^2+12x-4x^2+12x-16

simplified form:

-x^4+6x^3-17x^2+24x-16

or

x^4-6x^3+17x^2-24x+16

2. 6x-15-36x+45

simplified form:

-30x+30

30x-30

hope it will help you. :)

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