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OpenStudy (anonymous):
(x+4)(2x^2+x-7)
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OpenStudy (anonymous):
Distributive property.\[(x+4)(2x^2+x-7)=(x+4)2x^2+(x+4)x-(x+4)7\]\[=2x^3+8x^2+x^2+4x-7x-28=2x^3+9x^2-3x-28\]
OpenStudy (anonymous):
2x^3 + 9x^2 - 3x - 28
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