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X^2+5X+6=9X
We move all terms to the left:
X^2+5X+6-(9X)=0
We add all the numbers together, and all the variables
X^2-4X+6=0
a = 1; b = -4; c = +6;
Δ = b2-4ac
Δ = -42-4·1·6
Δ = -8
Delta is less than zero, so there is no solution for the equation
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