G(x)=2x2-4x+12

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Solution for G(x)=2x2-4x+12 equation: 



(G)=2G^2-4G+12

We move all terms to the left:

(G)-(2G^2-4G+12)=0

We get rid of parentheses

-2G^2+G+4G-12=0

We add all the numbers together, and all the variables

-2G^2+5G-12=0

a = -2; b = 5; c = -12;
Δ = b2-4ac
Δ = 52-4·(-2)·(-12)
Δ = -71
Delta is less than zero, so there is no solution for the equation

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