SOLUTION: Which statement is true for the quadratic equation 0 = -2x^2 - 9x - 4? I have gotten to the point of -2x^2 - 9x 4 = 0, but I don't know what to do next. My answers are: A. The p

Question 66772: Which statement is true for the quadratic equation 0 = -2x^2 - 9x - 4?
I have gotten to the point of -2x^2 - 9x 4 = 0, but I don't know what to do next. My answers are: A. The product of the roots is 4/9
B. The product of the roots is -2.
C. The sum of the roots is 9/2.
D. The sum of the roots is -9/2
I do know that C is not a correct answer (my teacher told me so). THANKS
Oh, by the way I don't have a textbook pg. because our teacher just gave us the problems on paper.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Let's solve the equation to find out what the roos are:
Divide both sides by -1 to facilitate solving.
Factor the left side.
Apply the zero product principle.
and/or
If then and
If the
So the roots are:
and
The product of these roots is:
The sum of these roots is:
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