4x^2+6x=-x^2-1

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Solution for 4x^2+6x=-x^2-1 equation:


Simplifying
4x2 + 6x = -1x2 + -1

Reorder the terms:
6x + 4x2 = -1x2 + -1

Reorder the terms:
6x + 4x2 = -1 + -1x2

Solving
6x + 4x2 = -1 + -1x2

Solving for variable 'x'.

Reorder the terms:
1 + 6x + 4x2 + x2 = -1 + -1x2 + 1 + x2

Combine like terms: 4x2 + x2 = 5x2
1 + 6x + 5x2 = -1 + -1x2 + 1 + x2

Reorder the terms:
1 + 6x + 5x2 = -1 + 1 + -1x2 + x2

Combine like terms: -1 + 1 = 0
1 + 6x + 5x2 = 0 + -1x2 + x2
1 + 6x + 5x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
1 + 6x + 5x2 = 0

Factor a trinomial.
(1 + x)(1 + 5x) = 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 + 5x)' equal to zero and attempt to solve: Simplifying 1 + 5x = 0 Solving 1 + 5x = 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 + 5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x = 0 + -1 5x = 0 + -1 Combine like terms: 0 + -1 = -1 5x = -1 Divide each side by '5'. x = -0.2 Simplifying x = -0.2

Solution

x = {-1, -0.2}

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