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27 February, 18:06

How would you solve

4r to the negative third multiplied by 2r to the second power

I got 8r to the - 1st power, but my teacher says we cant have negative exponents?

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Answers (1)
  1. 27 February, 18:30
    0
    4r^-3 * 2r^2 =

    4 * (2r^ (-3+2))

    = 4*2r^-1

    = 4*2 (1/r)

    = 4 * (2/r)

    =8/r
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