x=-2x^2-2x-1

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Solution for x=-2x^2-2x-1 equation:


Simplifying
x = -2x2 + -2x + -1

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

Solving
x = -1 + -2x + -2x2

Solving for variable 'x'.

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

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

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

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

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

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

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

Subproblem 1

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 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 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Solution

x = {-1, -0.5}

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