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Change the fraction 3/(x +9) to one having 2x^2 +13x - 45 for its denominator.

Change the fraction 3/(x +9) to one having 2x^2 +13x - 45 for its denominator.
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3 votes
Change the fraction 3/(x +9) to one having 2x^2 +13x - 45 for its denominator.

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User Iced
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1 Answer

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2x²+13x-45 =(x+9)(2x-5)
3/(x+9)=[3(2x-5)]/[(x+9)(2x-5)]=(6x-15)/(2x²+13x-45)
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User Anion
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