Posted by **Brett** on Wednesday, November 4, 2009 at 7:54pm.

how do i factor 8m^2-6mn-9n^2

- algebra -
**Reiny**, Wednesday, November 4, 2009 at 8:26pm
If you had

8x^2 - 6x - 9 can you see how I factored it to

(4x+3)(2x-3) ?

- algebra -
**suseela.R**, Wednesday, November 4, 2009 at 11:36pm
8x^2 - 6x - 9

For this problem we have to multiply the first and the last term here the first term is 8 and the last term is -9 if we multiplied this two we will get -72 then we have to split this number in to two parts and the multiplication value of splitted term must be equal to -72 and the simplification value must be equal to the midlle term that is -6 .So we can split 72 as (-12)*6

8x^2-6x-9 = (2x-3)(4x+3)

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