5x(2x-7)+42-3x=2

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Solution for 5x(2x-7)+42-3x=2 equation: 



5x(2x-7)+42-3x=2

We move all terms to the left:

5x(2x-7)+42-3x-(2)=0

We add all the numbers together, and all the variables

-3x+5x(2x-7)+40=0

We multiply parentheses

10x^2-3x-35x+40=0

We add all the numbers together, and all the variables

10x^2-38x+40=0

a = 10; b = -38; c = +40;
Δ = b2-4ac
Δ = -382-4·10·40
Δ = -156
Delta is less than zero, so there is no solution for the equation

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