X(2x-6)=(2x+9)(x-9)

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Solution for X(2x-6)=(2x+9)(x-9) equation: 



X(2X-6)=(2X+9)(X-9)

We move all terms to the left:

X(2X-6)-((2X+9)(X-9))=0

We multiply parentheses

2X^2-6X-((2X+9)(X-9))=0

We multiply parentheses ..

2X^2-((+2X^2-18X+9X-81))-6X=0



We calculate terms in parentheses: -((+2X^2-18X+9X-81)), so:

(+2X^2-18X+9X-81)

We get rid of parentheses

2X^2-18X+9X-81

We add all the numbers together, and all the variables

2X^2-9X-81

Back to the equation:

-(2X^2-9X-81)



We add all the numbers together, and all the variables

2X^2-6X-(2X^2-9X-81)=0

We get rid of parentheses

2X^2-2X^2-6X+9X+81=0

We add all the numbers together, and all the variables

3X+81=0

We move all terms containing X to the left, all other terms to the right

3X=-81

X=-81/3

X=-27

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