X^2-1=2x+7

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Solution for X^2-1=2x+7 equation:


Simplifying
X2 + -1 = 2x + 7

Reorder the terms:
-1 + X2 = 2x + 7

Reorder the terms:
-1 + X2 = 7 + 2x

Solving
-1 + X2 = 7 + 2x

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + X2 = 7 + 1 + 2x

Combine like terms: -1 + 1 = 0
0 + X2 = 7 + 1 + 2x
X2 = 7 + 1 + 2x

Combine like terms: 7 + 1 = 8
X2 = 8 + 2x

Simplifying
X2 = 8 + 2x

Reorder the terms:
-8 + X2 + -2x = 8 + 2x + -8 + -2x

Reorder the terms:
-8 + X2 + -2x = 8 + -8 + 2x + -2x

Combine like terms: 8 + -8 = 0
-8 + X2 + -2x = 0 + 2x + -2x
-8 + X2 + -2x = 2x + -2x

Combine like terms: 2x + -2x = 0
-8 + X2 + -2x = 0

The solution to this equation could not be determined.

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