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6x^2-4x+15=-10
We move all terms to the left:
6x^2-4x+15-(-10)=0
We add all the numbers together, and all the variables
6x^2-4x+25=0
a = 6; b = -4; c = +25;
Δ = b2-4ac
Δ = -42-4·6·25
Δ = -584
Delta is less than zero, so there is no solution for the equation
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