Posted by Michael J on Friday, June 4, 2010 at 9:48pm.
If you want to check your answer, just multiply -4x(6x^3-3x^2-4x). You will find out that you need to check your signs and your division.
24x^4-12x^3+48x^2/-4x
this problem is divide by negative 4x
so my answer is should be 6x^3+3x^2+12x^
let me know if this right.
It should be -6x^3+3x^2-12x. You just had a few signs wrong.
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