5x-9=x(7x-9)

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Solution for 5x-9=x(7x-9) equation: 



5x-9=x(7x-9)

We move all terms to the left:

5x-9-(x(7x-9))=0



We calculate terms in parentheses: -(x(7x-9)), so:

x(7x-9)

We multiply parentheses

7x^2-9x

Back to the equation:

-(7x^2-9x)



We get rid of parentheses

-7x^2+5x+9x-9=0

We add all the numbers together, and all the variables

-7x^2+14x-9=0

a = -7; b = 14; c = -9;
Δ = b2-4ac
Δ = 142-4·(-7)·(-9)
Δ = -56
Delta is less than zero, so there is no solution for the equation

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