SOLUTION: Factoring Trinomials by Trial and Error 18x^3y+36x^2y-32xy

Question 57403: Factoring Trinomials by Trial and Error
18x^3y+36x^2y-32xy
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
18x^3y + 36x^2y - 32xy
2xy(9x^2 + 18x - 16)
2xy(9x^2 + 18x - 16)

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=900 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.666666666666667, -2.66666666666667. Here's your graph:

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