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3x+4+2x=5(x2)+7
We move all terms to the left:
3x+4+2x-(5(x2)+7)=0
We add all the numbers together, and all the variables
-(+5x^2+7)+3x+2x+4=0
We add all the numbers together, and all the variables
-(+5x^2+7)+5x+4=0
We get rid of parentheses
-5x^2+5x-7+4=0
We add all the numbers together, and all the variables
-5x^2+5x-3=0
a = -5; b = 5; c = -3;
Δ = b2-4ac
Δ = 52-4·(-5)·(-3)
Δ = -35
Delta is less than zero, so there is no solution for the equation
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