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Mathematics
Bailey Leblanc
15 September, 23:27
Multiply the polynomials (7x^2 + 9x + 7) (9x - 4)
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Emely Franco
16 September, 00:39
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Answer: 63x^3+53x^2+27x-28
Step-by-step explanation:
(7x^2+9x+7) (9x-4)
7x^2 X 9x+7x^2 (-4) + 9x X 9x (-4) + 7 X 9x + 7 (-4)
7 X 9x^2x - 7 X 4x^2 + 9 X 9xx - 9 X 4x+7 X 9x-7 X 4
63x^3+53x^2+27x-28
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