(X+4)(x+2)-x(x+2)=75

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Solution for (X+4)(x+2)-x(x+2)=75 equation: 



(X+4)(X+2)-X(X+2)=75

We move all terms to the left:

(X+4)(X+2)-X(X+2)-(75)=0

We multiply parentheses

-X^2+(X+4)(X+2)-2X-75=0

We multiply parentheses ..

-X^2+(+X^2+2X+4X+8)-2X-75=0

We add all the numbers together, and all the variables

-1X^2+(+X^2+2X+4X+8)-2X-75=0

We get rid of parentheses

-1X^2+X^2+2X+4X-2X+8-75=0

We add all the numbers together, and all the variables

4X-67=0

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

4X=67

X=67/4

X=16+3/4

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