(x+2)(x-1)=6+x^2

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Solution for (x+2)(x-1)=6+x^2 equation:


Simplifying
(x + 2)(x + -1) = 6 + x2

Reorder the terms:
(2 + x)(x + -1) = 6 + x2

Reorder the terms:
(2 + x)(-1 + x) = 6 + x2

Multiply (2 + x) * (-1 + x)
(2(-1 + x) + x(-1 + x)) = 6 + x2
((-1 * 2 + x * 2) + x(-1 + x)) = 6 + x2
((-2 + 2x) + x(-1 + x)) = 6 + x2
(-2 + 2x + (-1 * x + x * x)) = 6 + x2
(-2 + 2x + (-1x + x2)) = 6 + x2

Combine like terms: 2x + -1x = 1x
(-2 + 1x + x2) = 6 + x2

Add '-1x2' to each side of the equation.
-2 + 1x + x2 + -1x2 = 6 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-2 + 1x + 0 = 6 + x2 + -1x2
-2 + 1x = 6 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-2 + 1x = 6 + 0
-2 + 1x = 6

Solving
-2 + 1x = 6

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 1x = 6 + 2

Combine like terms: -2 + 2 = 0
0 + 1x = 6 + 2
1x = 6 + 2

Combine like terms: 6 + 2 = 8
1x = 8

Divide each side by '1'.
x = 8

Simplifying
x = 8

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