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-5x(2x+7)+24=89
We move all terms to the left:
-5x(2x+7)+24-(89)=0
We add all the numbers together, and all the variables
-5x(2x+7)-65=0
We multiply parentheses
-10x^2-35x-65=0
a = -10; b = -35; c = -65;
Δ = b2-4ac
Δ = -352-4·(-10)·(-65)
Δ = -1375
Delta is less than zero, so there is no solution for the equation
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