5x+x^2=4-2x-x^2

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Solution for 5x+x^2=4-2x-x^2 equation:


Simplifying
5x + x2 = 4 + -2x + -1x2

Solving
5x + x2 = 4 + -2x + -1x2

Solving for variable 'x'.

Reorder the terms:
-4 + 5x + 2x + x2 + x2 = 4 + -2x + -1x2 + -4 + 2x + x2

Combine like terms: 5x + 2x = 7x
-4 + 7x + x2 + x2 = 4 + -2x + -1x2 + -4 + 2x + x2

Combine like terms: x2 + x2 = 2x2
-4 + 7x + 2x2 = 4 + -2x + -1x2 + -4 + 2x + x2

Reorder the terms:
-4 + 7x + 2x2 = 4 + -4 + -2x + 2x + -1x2 + x2

Combine like terms: 4 + -4 = 0
-4 + 7x + 2x2 = 0 + -2x + 2x + -1x2 + x2
-4 + 7x + 2x2 = -2x + 2x + -1x2 + x2

Combine like terms: -2x + 2x = 0
-4 + 7x + 2x2 = 0 + -1x2 + x2
-4 + 7x + 2x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-4 + 7x + 2x2 = 0

Factor a trinomial.
(-4 + -1x)(1 + -2x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

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 = {-4, 0.5}

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