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-10x^2-70x=180
We move all terms to the left:
-10x^2-70x-(180)=0
a = -10; b = -70; c = -180;
Δ = b2-4ac
Δ = -702-4·(-10)·(-180)
Δ = -2300
Delta is less than zero, so there is no solution for the equation
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