(1/x^2-15x+56)+(1/x^2+6x-16)/(1/x^2+5x-14)+(1/x^2+12x+35)

(1/x^2-15x+56)+(1/x^2+6x-16)/(1/x^2+5x-14)+(1/x^2+12x+35)
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1 Answer

Multiply top and bottom by x2:

(1-15x3+56x2+1+6x3-16x2)/(1+5x3-14x2+1+12x3+35x2)=

(2-9x3+40x2)/(2+17x3+21x2).

by Top Rated User (1.2m points)

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