0=-1+2x-1,4x^2

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Solution for 0=-1+2x-1,4x^2 equation: 



0=-1+2x-1.4x^2

We move all terms to the left:

0-(-1+2x-1.4x^2)=0

We add all the numbers together, and all the variables

-(-1+2x-1.4x^2)=0

We get rid of parentheses

1.4x^2-2x+1=0

a = 1.4; b = -2; c = +1;
Δ = b2-4ac
Δ = -22-4·1.4·1
Δ = -1.6
Delta is less than zero, so there is no solution for the equation

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