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(5)(x)=3x^2+7
We move all terms to the left:
(5)(x)-(3x^2+7)=0
We get rid of parentheses
-3x^2+5x-7=0
a = -3; b = 5; c = -7;
Δ = b2-4ac
Δ = 52-4·(-3)·(-7)
Δ = -59
Delta is less than zero, so there is no solution for the equation
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