-4=2x^2-x

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Solution for -4=2x^2-x equation: 



-4=2x^2-x

We move all terms to the left:

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

We get rid of parentheses

-2x^2+x-4=0

a = -2; b = 1; c = -4;
Δ = b2-4ac
Δ = 12-4·(-2)·(-4)
Δ = -31
Delta is less than zero, so there is no solution for the equation

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