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-4x(5x-2)+3(7x-7)-8=5-2
We move all terms to the left:
-4x(5x-2)+3(7x-7)-8-(5-2)=0
We add all the numbers together, and all the variables
-4x(5x-2)+3(7x-7)-8-3=0
We add all the numbers together, and all the variables
-4x(5x-2)+3(7x-7)-11=0
We multiply parentheses
-20x^2+8x+21x-21-11=0
We add all the numbers together, and all the variables
-20x^2+29x-32=0
a = -20; b = 29; c = -32;
Δ = b2-4ac
Δ = 292-4·(-20)·(-32)
Δ = -1719
Delta is less than zero, so there is no solution for the equation
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