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X^2-14X+72=-2
We move all terms to the left:
X^2-14X+72-(-2)=0
We add all the numbers together, and all the variables
X^2-14X+74=0
a = 1; b = -14; c = +74;
Δ = b2-4ac
Δ = -142-4·1·74
Δ = -100
Delta is less than zero, so there is no solution for the equation
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