30x-10x=(2x+1)(9x+2)

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Solution for 30x-10x=(2x+1)(9x+2) equation: 



30x-10x=(2x+1)(9x+2)

We move all terms to the left:

30x-10x-((2x+1)(9x+2))=0

We add all the numbers together, and all the variables

20x-((2x+1)(9x+2))=0

We multiply parentheses ..

-((+18x^2+4x+9x+2))+20x=0



We calculate terms in parentheses: -((+18x^2+4x+9x+2)), so:

(+18x^2+4x+9x+2)

We get rid of parentheses

18x^2+4x+9x+2

We add all the numbers together, and all the variables

18x^2+13x+2

Back to the equation:

-(18x^2+13x+2)



We add all the numbers together, and all the variables

20x-(18x^2+13x+2)=0

We get rid of parentheses

-18x^2+20x-13x-2=0

We add all the numbers together, and all the variables

-18x^2+7x-2=0

a = -18; b = 7; c = -2;
Δ = b2-4ac
Δ = 72-4·(-18)·(-2)
Δ = -95
Delta is less than zero, so there is no solution for the equation

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