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2x^2=-7-5x
We move all terms to the left:
2x^2-(-7-5x)=0
We add all the numbers together, and all the variables
2x^2-(-5x-7)=0
We get rid of parentheses
2x^2+5x+7=0
a = 2; b = 5; c = +7;
Δ = b2-4ac
Δ = 52-4·2·7
Δ = -31
Delta is less than zero, so there is no solution for the equation
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