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X-X2=30
We move all terms to the left:
X-X2-(30)=0
We add all the numbers together, and all the variables
-1X^2+X-30=0
a = -1; b = 1; c = -30;
Δ = b2-4ac
Δ = 12-4·(-1)·(-30)
Δ = -119
Delta is less than zero, so there is no solution for the equation
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