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Factor the expression below by using the distributive property and grouping the first two terms together AND use the distributive property and group the last two terms together. x^3 + 7x^2 - 6x - 42. Show your work, please.

 Sep 5, 2019
 #1
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The hint given is wrong.  You need to group the terms as follows.

 

\(x^3 + 7x^2 -6x-42 = \\ (x^3 -6x) + (7x^2 - 42) = \\ x(x^2 - 6) + 7(x^2 - 6) = \\ (x+7)(x^2-6)\)

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 Sep 5, 2019

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