Rewrite the middle term as the sum of two terms and then factor completely

4z^(3)-18z^(2)-10z

Am I rewriting this correctly?

4z^(3)+z-19z^(3)-10z

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- Jul 5th 2007, 06:40 AMlizard4math problem
Rewrite the middle term as the sum of two terms and then factor completely

4z^(3)-18z^(2)-10z

Am I rewriting this correctly?

4z^(3)+z-19z^(3)-10z - Jul 5th 2007, 06:59 AMPlato
Try $\displaystyle 4z^3 +2z^2 -20z^2 -10z$.