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21 May, 08:31

How to factor 5r^2+10r-240

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  1. 21 May, 08:54
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    5 (r+8) (r-6)

    Step-by-step explanation:

    5r^2+10r-240

    First factor out the greatest common factor

    5 (r^2 + 2r - 48)

    Now factor what is inside the parentheses

    What multiplies to - 48 and adds to 2

    8*-6 = - 48

    8-6 = 2

    5 (r+8) (r-6)
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