(-3p+7)/(p^2+7p+12)+(8p+13)/(p^2+7p+12)

(-3p+7)/(p^2+7p+12)+(8p+13)/(p^2+7p+12) Trying to understand the step by step process
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1 Answer

first, note: x^2 +7x +12)=(x+3)*(x+4)=Y

so yu hav (7-3x)/Y  +(8x+13)/Y

=(8x-3x +7 +13) /Y

=(4x+20)/Y

=4*(x+5) / [(x+3)*(x+4)]
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