Question 74241
(y^2-36)/(y+3) * (y-4)/(y^2+2y-24)
Factor where you can to get:

=[(y+3)(y-3)/(y+3)] * [(y-4)/(y-6)(y+4)]

Cancel factors that are common to numerator and denominator:

=[1/(y-3)] * [(y-4)/(y-6)(y+4)]

=(y-4)/[(y-3)(y-6)(y+4)]

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Cheers,
Stan H.