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3x*x+5+2=0
We add all the numbers together, and all the variables
3x*x+7=0
Wy multiply elements
3x^2+7=0
a = 3; b = 0; c = +7;
Δ = b2-4ac
Δ = 02-4·3·7
Δ = -84
Delta is less than zero, so there is no solution for the equation
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