2x(2-x)=4

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



2x(2-x)=4

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x(-1x+2)-4=0

We multiply parentheses

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

a = -2; b = 4; c = -4;
Δ = b2-4ac
Δ = 42-4·(-2)·(-4)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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