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3X*X-4X+9=0
We add all the numbers together, and all the variables
-4X+3X*X+9=0
Wy multiply elements
3X^2-4X+9=0
a = 3; b = -4; c = +9;
Δ = b2-4ac
Δ = -42-4·3·9
Δ = -92
Delta is less than zero, so there is no solution for the equation
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