Question 867764: How do we factor -15= -12x^2 + 24x
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! That's an equation.
Equations are usually solved, not factored.
Sometimes factoring is used to solve them.
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-15= -12x^2 + 24x
12x^2 - 24x - 15 = 0
divide by 3
4x^2 - 8x - 5 = 0
Now you can try to factor the trinomial
(2x + 1)*(2x - 5) = 0
x = -1/2
x = 5/2
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