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x.2(-3x+5)=52
We move all terms to the left:
x.2(-3x+5)-(52)=0
We multiply parentheses
-3x^2+5x-52=0
a = -3; b = 5; c = -52;
Δ = b2-4ac
Δ = 52-4·(-3)·(-52)
Δ = -599
Delta is less than zero, so there is no solution for the equation
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