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x^2+4x-9=2x-11
We move all terms to the left:
x^2+4x-9-(2x-11)=0
We get rid of parentheses
x^2+4x-2x+11-9=0
We add all the numbers together, and all the variables
x^2+2x+2=0
a = 1; b = 2; c = +2;
Δ = b2-4ac
Δ = 22-4·1·2
Δ = -4
Delta is less than zero, so there is no solution for the equation
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