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I'm not sure how to do these equations
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I'm not sure how to do these equations

I'm not sure how to do these equations-example-1
User Christopher Milne
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1 Answer

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(x^2+4x+3)/(x^2-4x-21) = ((x+3)(x+1))/((x+3)(x-7)) = (x+1)/(x-7)

(x^2+10x+16)/(x^2+13x+40) = ((x+8)(x+2))/((x+8)(x+5)) = (x+2)/(x+5)
User Skpdm
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