MULTIPLY (X+4)(2X^3+4X^2+2X-5)

Can someone show me how to do this please
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1 Answer

(X+4)(2X3+4X2+2X-5)=

X(2X3+4X2+2X-5)+4(2X3+4X2+2X-5)=

2X4+4X3   +2X2  -5X + 

        8X3  +16X2+8X-20=

2X4+12X3+18X2+3X-20.

by Top Rated User (1.2m points)

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