SOLUTION: solve. 25b^2-30b-7=0

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Question 298431: solve. 25b^2-30b-7=0
Answer by user_dude2008(1862) About Me  (Show Source):
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25b^2-30b-7=0

(5b-7)(5b+1)=0

5b-7=0 or 5b+1=0

b=7/5 or b=-1/5