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31 votes
HELP with this please!!

HELP with this please!!-example-1
User Zentenk
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2 Answers

18 votes
18 votes


~~~~(12)/(x^2 -49) \cdot (x^2+9x+14)/(9)\\\\\\=(4)/(x^2 -7^2)\cdot (x^2 + 7x +2x +14)/(3)\\\\\\=(4)/((x+7)(x-7)) \cdot (x(x+7)+2(x+7))/(3)\\\\\\=(4)/((x+7)(x-7))\cdot ((x+7)(x+2))/(3)\\\\\\=(4(x+2))/(3(x-7))

User Kohjah Breese
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3.1k points
29 votes
29 votes

Answer:


(4(x + 2))/(3(x - 7))

Explanation:

Hello!

We can simplify this by factoring, and cross reducing.

Simplify


  • (12)/(x^2 - 49) * (x^2 + 9x + 14)/(9)

  • (12)/((x+7)(x - 7)) * ((x + 2)(x + 7))/(9)

  • (12(x + 2))/(9(x - 7))

  • (4(x + 2))/(3(x - 7))

The final simplified form is
(4(x + 2))/(3(x - 7))

User Itsclarke
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