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-0.5x(x-1)=0.2x+3-0.7x
We move all terms to the left:
-0.5x(x-1)-(0.2x+3-0.7x)=0
We add all the numbers together, and all the variables
-0.5x(x-1)-(-0.5x+3)=0
We multiply parentheses
-0x^2-0x-(-0.5x+3)=0
We get rid of parentheses
-0x^2-0x+0.5x-3=0
We add all the numbers together, and all the variables
-1x^2-0.5x-3=0
a = -1; b = -0.5; c = -3;
Δ = b2-4ac
Δ = -0.52-4·(-1)·(-3)
Δ = -11.75
Delta is less than zero, so there is no solution for the equation
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