-5x^2+2x+2=-5x^2+2x+x(x+1)

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Solution for -5x^2+2x+2=-5x^2+2x+x(x+1) equation: 


Simplifying
-5x2 + 2x + 2 = -5x2 + 2x + x(x + 1)

Reorder the terms:
2 + 2x + -5x2 = -5x2 + 2x + x(x + 1)

Reorder the terms:
2 + 2x + -5x2 = -5x2 + 2x + x(1 + x)
2 + 2x + -5x2 = -5x2 + 2x + (1 * x + x * x)
2 + 2x + -5x2 = -5x2 + 2x + (1x + x2)

Reorder the terms:
2 + 2x + -5x2 = 2x + 1x + -5x2 + x2

Combine like terms: 2x + 1x = 3x
2 + 2x + -5x2 = 3x + -5x2 + x2

Combine like terms: -5x2 + x2 = -4x2
2 + 2x + -5x2 = 3x + -4x2

Solving
2 + 2x + -5x2 = 3x + -4x2

Solving for variable 'x'.

Reorder the terms:
2 + 2x + -3x + -5x2 + 4x2 = 3x + -4x2 + -3x + 4x2

Combine like terms: 2x + -3x = -1x
2 + -1x + -5x2 + 4x2 = 3x + -4x2 + -3x + 4x2

Combine like terms: -5x2 + 4x2 = -1x2
2 + -1x + -1x2 = 3x + -4x2 + -3x + 4x2

Reorder the terms:
2 + -1x + -1x2 = 3x + -3x + -4x2 + 4x2

Combine like terms: 3x + -3x = 0
2 + -1x + -1x2 = 0 + -4x2 + 4x2
2 + -1x + -1x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
2 + -1x + -1x2 = 0

Factor a trinomial.
(1 + -1x)(2 + x) = 0


Subproblem 1
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

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

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

Divide each side by '-1'.
x = 1

Simplifying
x = 1

Subproblem 2
Set the factor '(2 + x)' equal to zero and attempt to solve:

Simplifying
2 + x = 0

Solving
2 + x = 0

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

Add '-2' to each side of the equation.
2 + -2 + x = 0 + -2

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

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

Simplifying
x = -2
Solution
x = {1, -2}

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