SOLUTION: Please help me with the following homework question, I believe the obvious answer is 600 but I'm not sure. P(x)=-0.002x²+1.2x-300

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help me with the following homework question, I believe the obvious answer is 600 but I'm not sure. P(x)=-0.002x²+1.2x-300      Log On


   

Question 134161: Please help me with the following homework question, I believe the obvious answer is 600 but I'm not sure. P(x)=-0.002x²+1.2x-300
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
P(X)=-.002X^2+1.2X-300
USING THE QUADRATIC EQUATION: x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(-1.2+-SQRT{1.2^2-4*-.002*-300])/2*-.002
X=(-1.2+-SQRT[1.44-2.4])/-.004
X=)-1.2+-SQRT-.96)/-.004
X=(-1.2+-.98i)/-.004
X=(-1.2/-.004+-.98i/-.004
X=300+-245i ANSWERS.