SOLUTION: How do you factor this "completely?" the equation is: B squared+7B-30

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Question 345363: How do you factor this "completely?" the equation is: B squared+7B-30
Found 2 solutions by mananth, ewatrrr:
Answer by mananth(16946) About Me  (Show Source):
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
To factor: B%5E2%2B7B-30
.
Ask Yourself: What two numbers have the sum of 7 AND -30 is the result of multiplying these numbers?
.
Note: 10*-3 = -30
10 + (-3) = 7
.
Factored completely:
highlight%28%28B%2B10%29%28B-3%29%29
.
Check your answer by multiplying (B+10)(B-3)
B%5E2%2B7B-30