(3x-4)(7x-9)=-10

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Solution for (3x-4)(7x-9)=-10 equation: 



(3x-4)(7x-9)=-10

We move all terms to the left:

(3x-4)(7x-9)-(-10)=0

We add all the numbers together, and all the variables

(3x-4)(7x-9)+10=0

We multiply parentheses ..

(+21x^2-27x-28x+36)+10=0

We get rid of parentheses

21x^2-27x-28x+36+10=0

We add all the numbers together, and all the variables

21x^2-55x+46=0

a = 21; b = -55; c = +46;
Δ = b2-4ac
Δ = -552-4·21·46
Δ = -839
Delta is less than zero, so there is no solution for the equation

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