Question

find the product of (x^2+5x+4) (x-7x)

Answer 1

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Answer 2

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$\: \: \: \: \: \: \: \: \: \: (x {}^{2} + 5x + 4)(x - 7x) \\ =x {}^{3} - 7x {}^{3} + 5x {}^{2} - 35x {}^{2} + 4x - 28x \\ = - 6x { }^{3} - 30x {}^{2} - 24x$