SOLUTION: z3 + 3z^2 + 7z + 21
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Question 338518
:
z3 + 3z^2 + 7z + 21
Answer by
fractalier(6550)
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Factor z^3 + 3z^2 + 7z + 21 by grouping...
z^2(z + 3) + 7(z + 3) =
(z^2 + 7)(z + 3)
