75=-20x^2

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Solution for 75=-20x^2 equation: 



75=-20x^2

We move all terms to the left:

75-(-20x^2)=0

We get rid of parentheses

20x^2+75=0

a = 20; b = 0; c = +75;
Δ = b2-4ac
Δ = 02-4·20·75
Δ = -6000
Delta is less than zero, so there is no solution for the equation

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