(5)=-4x^2

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Solution for (5)=-4x^2 equation: 



(5)=-4x^2

We move all terms to the left:

(5)-(-4x^2)=0

We get rid of parentheses

4x^2+5=0

a = 4; b = 0; c = +5;
Δ = b2-4ac
Δ = 02-4·4·5
Δ = -80
Delta is less than zero, so there is no solution for the equation

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