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28 July, 05:36

A friend wrote the expression 5 (x+2) as 5x+2. Write a few sentences to them explaining the error. Then rewrite it correctly.

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  1. 28 July, 06:09
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    When multiplying with a polynomial, you distribute the outside number with both terms. So 5 would seperately multiple into x and 2

    5 (x+2)

    5x + (5 x 2)

    5x+10 is the correct answer
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