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Factor this expression completely. ab + 4 + a + 4b
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3 votes
Factor this expression completely.

ab + 4 + a + 4b

User Jeff Beck
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1 Answer

5 votes
Greetings!

Rearrange.

ab+4+a+4b

ab+a+4+4b
Factor by grouping.

a(b+1)+4(1+b)

a(b+1)+4(b+1)
Find the GCF.

(b+1)(a+4)

Hope this helped.
-Benjamin

User Ameer
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