E(x)=0.14x^2+7.8x+760

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Solution for E(x)=0.14x^2+7.8x+760 equation: 



(E)=0.14E^2+7.8E+760

We move all terms to the left:

(E)-(0.14E^2+7.8E+760)=0

We get rid of parentheses

-0.14E^2+E-7.8E-760=0

We add all the numbers together, and all the variables

-0.14E^2-6.8E-760=0

a = -0.14; b = -6.8; c = -760;
Δ = b2-4ac
Δ = -6.82-4·(-0.14)·(-760)
Δ = -379.36
Delta is less than zero, so there is no solution for the equation

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