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2x^2-8x=5x^2+17=0
We move all terms to the left:
2x^2-8x-(5x^2+17)=0
We get rid of parentheses
2x^2-5x^2-8x-17=0
We add all the numbers together, and all the variables
-3x^2-8x-17=0
a = -3; b = -8; c = -17;
Δ = b2-4ac
Δ = -82-4·(-3)·(-17)
Δ = -140
Delta is less than zero, so there is no solution for the equation
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