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# absolute value question

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how do you multiply (x-1) with abs(x)

Guest Sep 7, 2017
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how do you multiply (x-1) with abs(x)

$$If\;\; x >0 \text{ then the product is } x(x-1) = x^2-x$$

$$If\;\; x <0 \text{ then the product is } -x(x-1) = -x^2+x = -(x^2-x)$$

Melody  Sep 7, 2017

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