lalalandbaby lalalandbaby

01-06-2017
Mathematics

contestada

simplify into one fraction

$simplify into one fraction class=$

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biancazeelie biancazeelie

01-06-2017

I think it's B.

Good luck :)

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Аноним Аноним

01-06-2017

-1 2
------------- - -----------------
x - 9   x + 7

-1(x+7) - 2(x-9)
= --------------------------
(x - 9)(x+7)

-x - 7 - 2x + 18
= --------------------------
  (x - 9)(x+7)

-3x + 11
= ------------------
  (x - 9)(x+7)

Answer is D. Last choice

Answer Link

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