-7x(3x-1)=91

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Solution for -7x(3x-1)=91 equation: 



-7x(3x-1)=91

We move all terms to the left:

-7x(3x-1)-(91)=0

We multiply parentheses

-21x^2+7x-91=0

a = -21; b = 7; c = -91;
Δ = b2-4ac
Δ = 72-4·(-21)·(-91)
Δ = -7595
Delta is less than zero, so there is no solution for the equation

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