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0=x^2-10x+57
We move all terms to the left:
0-(x^2-10x+57)=0
We add all the numbers together, and all the variables
-(x^2-10x+57)=0
We get rid of parentheses
-x^2+10x-57=0
We add all the numbers together, and all the variables
-1x^2+10x-57=0
a = -1; b = 10; c = -57;
Δ = b2-4ac
Δ = 102-4·(-1)·(-57)
Δ = -128
Delta is less than zero, so there is no solution for the equation
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