-4(x^2-12)=x^2(12-x^2)

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Solution for -4(x^2-12)=x^2(12-x^2) equation:


Simplifying
-4(x2 + -12) = x2(12 + -1x2)

Reorder the terms:
-4(-12 + x2) = x2(12 + -1x2)
(-12 * -4 + x2 * -4) = x2(12 + -1x2)
(48 + -4x2) = x2(12 + -1x2)
48 + -4x2 = (12 * x2 + -1x2 * x2)
48 + -4x2 = (12x2 + -1x4)

Solving
48 + -4x2 = 12x2 + -1x4

Solving for variable 'x'.

Combine like terms: -4x2 + -12x2 = -16x2
48 + -16x2 + x4 = 12x2 + -1x4 + -12x2 + x4

Reorder the terms:
48 + -16x2 + x4 = 12x2 + -12x2 + -1x4 + x4

Combine like terms: 12x2 + -12x2 = 0
48 + -16x2 + x4 = 0 + -1x4 + x4
48 + -16x2 + x4 = -1x4 + x4

Combine like terms: -1x4 + x4 = 0
48 + -16x2 + x4 = 0

Factor a trinomial.
(4 + -1x2)(12 + -1x2) = 0

Factor a difference between two squares.
((2 + x)(2 + -1x))(12 + -1x2) = 0

Subproblem 1

Set the factor '(12 + -1x2)' equal to zero and attempt to solve: Simplifying 12 + -1x2 = 0 Solving 12 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x2 = 0 + -12 -1x2 = 0 + -12 Combine like terms: 0 + -12 = -12 -1x2 = -12 Divide each side by '-1'. x2 = 12 Simplifying x2 = 12 Take the square root of each side: x = {-3.464101615, 3.464101615}

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

Subproblem 3

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

Solution

x = {-3.464101615, 3.464101615, -2, 2}

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