X(2x-5)-2(x2-1)=12

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Solution for X(2x-5)-2(x2-1)=12 equation: 



X(2X-5)-2(X2-1)=12

We move all terms to the left:

X(2X-5)-2(X2-1)-(12)=0

We add all the numbers together, and all the variables

-2(+X^2-1)+X(2X-5)-12=0

We multiply parentheses

-2X^2+2X^2-5X+2-12=0

We add all the numbers together, and all the variables

-5X-10=0

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

-5X=10

X=10/-5

X=-2

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