-5x(3x-5)-5x+4=69

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Solution for -5x(3x-5)-5x+4=69 equation: 



-5x(3x-5)-5x+4=69

We move all terms to the left:

-5x(3x-5)-5x+4-(69)=0

We add all the numbers together, and all the variables

-5x-5x(3x-5)-65=0

We multiply parentheses

-15x^2-5x+25x-65=0

We add all the numbers together, and all the variables

-15x^2+20x-65=0

a = -15; b = 20; c = -65;
Δ = b2-4ac
Δ = 202-4·(-15)·(-65)
Δ = -3500
Delta is less than zero, so there is no solution for the equation

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