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Simplify using long division. (72 - 8x^2 + 4x^3 - 36x) / (x - 3)
2 Answers | add yours
First, order the numerator by degrees of x:
Now we can start the long divison. In order to display this clearly, I will not use the equation editor so that I can line everything up.
x-3| 4x^3- 8x^2-36x+72
` ` `(4x^3-8x^2-36x+72)/(x-3) = 4x^2+4x-24`
Posted by crmhaske on May 17, 2013 at 8:43 PM (Answer #1)
So: `(72-8x^2+4x^2-36x)/(x-3)=(2(x-4)(x+3)(x-3))/(x-3)` `=2(x-4)(x+3)`
Posted by oldnick on May 17, 2013 at 10:57 PM (Answer #2)
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