SOLUTION: Factor by grouping: 4m^2-8m-5

SOLUTION: Factor by grouping: 4m^2-8m-5

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Question 1035204: Factor by grouping: 4m^2-8m-5
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Factor by grouping:
4m^2-8m-5
rewrite the -8m as:
4m^2 +2m-10m -5
group:
(4m^2+2m)+ (-10m -5)
2m(2m+1)-(10m+5)
2m(2m+1)-5(2m+1)
(2m-5)(2m+1)

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