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29 April, 02:21

What is the product of (x-3) and (x + 7) ?

O A. x² + 108-21

B. x2 - 108-21

c. x² - 4x-21

D. x² + 4x - 21

4X-21

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  1. 29 April, 02:42
    0
    The answer is D: x (Squared) + 4x - 21.

    Step-by-step explanation:

    (X-3) (x+7)

    First you multiply the first x by x, to get x squared. Then you multiply the first x by 7 to get 7x.

    Next you multiply the - 3 by the second x, to get - 3x. Then you multiply the - 3 by the 7 to get - 21.

    Written in order it would look like:

    X (squared) + 7x - 3x - 21

    You can combine the 7x and the - 3x because they are like terms. This would leave you with:

    x (squared) + 4x - 21
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