SOLUTION: how do i factor this equation 24m to the second power minus 105m minus 75?

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Question 618289: how do i factor this equation 24m to the second power minus 105m minus 75?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
24m%5E2+-+105m+-+75
3%2A%288m%5E2+-+35m+-+25%29 8 has the factors 1,8 and 4,2. 25 has factors 1,25 and 5,5. fond the combination that gives you a -35 for the middle term. (8*(-5) + 1*5)
3%2A%288m+%2B+5%29%28m+-+5%29