SOLUTION: I hope someone can help me find the GCF in each expression. Please go step by step. a(a+1)-3(a+1) Hope someone can help me. Thank you...

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Question 378909: I hope someone can help me find the GCF in each expression. Please go step by step.
a(a+1)-3(a+1)
Hope someone can help me. Thank you...
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Simplifying

a(a+1)-3(a+1)

a^2 + a - 3a - 3

a^2 -2a - 3

factor if You wish

(a - 3)(a + 1) Note:SUM of the inner product(-3a) and the outer product(1*a) = -2a