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0=7x^2+6x+3
We move all terms to the left:
0-(7x^2+6x+3)=0
We add all the numbers together, and all the variables
-(7x^2+6x+3)=0
We get rid of parentheses
-7x^2-6x-3=0
a = -7; b = -6; c = -3;
Δ = b2-4ac
Δ = -62-4·(-7)·(-3)
Δ = -48
Delta is less than zero, so there is no solution for the equation
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