P(x)=-0.002x^2+1.2x-300

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Solution for P(x)=-0.002x^2+1.2x-300 equation: 



(P)=-0.002P^2+1.2P-300

We move all terms to the left:

(P)-(-0.002P^2+1.2P-300)=0

We get rid of parentheses

0.002P^2-1.2P+P+300=0

We add all the numbers together, and all the variables

0.002P^2-0.2P+300=0

a = 0.002; b = -0.2; c = +300;
Δ = b2-4ac
Δ = -0.22-4·0.002·300
Δ = -2.36
Delta is less than zero, so there is no solution for the equation

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