Answer:
Step-by-step explanation:
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First step multiply your terms in your first expression just to the 1 in the second expression like so:
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Anything times 1 is that anything.
That is, .
Now we are going to take the top expression and multiply it to the -x in the second expression. . We are going to put this product right under our previous product.
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We still have one more multiplication but before we do that I'm going to put some 0 place holders in and get my like terms lined up for the later addition:
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Now for the last multiplication, we are going to take the top expression and multiply it to x^3 giving us . (I'm going to put this product underneath our other 2 products):
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I'm going to again insert some zero placeholders to help me line up my like terms for the addition.
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----------------------------------------------------Adding the three products!