(x-6)(x+7)/(x-9)(x+5)?

1 Answer
Gazza
Mar 22, 2018

#=(x^2+x-42)/(x^2-4x-45#

Explanation:

#((x-6)(x+7))/((x-9)(x+5))#

Use the distributive property

#=((x)(x)+(x)(7)+(-6)(x)+(-6)(7))/((x)(x)+(x)(5)+(-9)(x)+(-9)(5)#

#=(x^2+7x-6x-42)/(x^2+5x-9x-45)#

#=(x^2+x-42)/(x^2-4x-45#

#=(x^2+x-42)/(x^2-4x - 45#

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