SOLUTION: z3 + 3z^2 + 7z + 21

SOLUTION: z3 + 3z^2 + 7z + 21

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Question 338518: z3 + 3z^2 + 7z + 21
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Factor z^3 + 3z^2 + 7z + 21 by grouping...
z^2(z + 3) + 7(z + 3) =
(z^2 + 7)(z + 3)
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