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3 votes
X+9/x^3-9x^2+15x+25
how do I solve this

User Christophe
by
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1 Answer

4 votes

(x + 9)/(x^(3) - 9x^(2) + 15x + 25)

(x + 9)/(x^(3) - 10x^(2) + x^(2) + 25x - 10x + 25)

(x + 9)/(x^(3) - 10x^(2) + 25x + x^(2) - 10x + 25)

(x + 9)/(x(x^(2)) - x(10x) + x(25) + 1(x^(2)) - 1(10x) + 1(25))

(x + 9)/(x(x^(2) - 10x + 25) + 1(x^(2) - 10x + 25))

(x + 9)/((x + 1)(x^(2) - 10x + 25))

(x + 9)/((x + 1)(x^(2) - 5x - 5x + 25))

(x + 9)/((x + 1)(x(x) - x(5) - 5(x) + 5(5))

(x + 9)/((x + 1)(x(x - 5) - 5(x -5)))

(x + 9)/((x + 1)(x - 5)(x - 5))

(x + 9)/((x + 1)(x - 5)^(2))
User Kampsj
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8.8k points