SOLUTION: Factor this expression completely. Note: Place factors alphabetically.
ab + 4 + a + 4b
-- Thanks so very much to whoever helps(:
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Question 612895: Factor this expression completely. Note: Place factors alphabetically.
ab + 4 + a + 4b
-- Thanks so very much to whoever helps(:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
ab + 4 + a + 4b
ab + a + 4 + 4b
(ab + a) + (4 + 4b)
a(b + 1) + (4 + 4b)
a(b + 1) + 4(1 + b)
a(b + 1) + 4(b + 1)
(a + 4)(b + 1)
So ab + 4 + a + 4b completely factors to (a + 4)(b + 1)
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