SOLUTION: I am stuck on correct answer for: (y^2 - 4y + 3) - (4y^2 + 5Y - 2) = I am not using any specific book. I am just practicing...

Question 54498: I am stuck on correct answer for:
(y^2 - 4y + 3) - (4y^2 + 5Y - 2) =

I am not using any specific book. I am just practicing...
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
y^2 - 4y + 3 - 4y^2 - 5y + 2
-3y^2 - 9y + 5

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=141 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -3.47905701450632, 0.479057014506319. Here's your graph:

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