56=0.4x^2-36x+1000

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Solution for 56=0.4x^2-36x+1000 equation: 



56=0.4x^2-36x+1000

We move all terms to the left:

56-(0.4x^2-36x+1000)=0

We get rid of parentheses

-0.4x^2+36x-1000+56=0

We add all the numbers together, and all the variables

-0.4x^2+36x-944=0

a = -0.4; b = 36; c = -944;
Δ = b2-4ac
Δ = 362-4·(-0.4)·(-944)
Δ = -214.4
Delta is less than zero, so there is no solution for the equation

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