Factor by grouping
ab + 7a + 4b + 28
2 answers:
Answer:
(b + 7)(a + 4)
Step-by-step explanation:
ab + 7a + 4b + 28
separate the polynomial into 2 sections
(ab + 7a) (+ 4b + 28)
simplify each expression
a(b + 7)
4(b + 7)
you see that you have (b + 7) in both expressions. take that aside.
(b + 7)
you are left with a and positive 4. put these two together
(a + 4)
now put the expressions together
(b + 7)(a + 4)
Answer:
Step-by-step explanation:
Take a common
Take 4 common
Take ( b + 7 ) common
Hope I helped!
Best regards! :D
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