7n(3-4n)=135

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Solution for 7n(3-4n)=135 equation: 



7n(3-4n)=135

We move all terms to the left:

7n(3-4n)-(135)=0

We add all the numbers together, and all the variables

7n(-4n+3)-135=0

We multiply parentheses

-28n^2+21n-135=0

a = -28; b = 21; c = -135;
Δ = b2-4ac
Δ = 212-4·(-28)·(-135)
Δ = -14679
Delta is less than zero, so there is no solution for the equation

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