(x^2-3)(x^2-3)=27

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Solution for (x^2-3)(x^2-3)=27 equation:


Simplifying
(x2 + -3)(x2 + -3) = 27

Reorder the terms:
(-3 + x2)(x2 + -3) = 27

Reorder the terms:
(-3 + x2)(-3 + x2) = 27

Multiply (-3 + x2) * (-3 + x2)
(-3(-3 + x2) + x2(-3 + x2)) = 27
((-3 * -3 + x2 * -3) + x2(-3 + x2)) = 27
((9 + -3x2) + x2(-3 + x2)) = 27
(9 + -3x2 + (-3 * x2 + x2 * x2)) = 27
(9 + -3x2 + (-3x2 + x4)) = 27

Combine like terms: -3x2 + -3x2 = -6x2
(9 + -6x2 + x4) = 27

Solving
9 + -6x2 + x4 = 27

Solving for variable 'x'.

Reorder the terms:
9 + -27 + -6x2 + x4 = 27 + -27

Combine like terms: 9 + -27 = -18
-18 + -6x2 + x4 = 27 + -27

Combine like terms: 27 + -27 = 0
-18 + -6x2 + x4 = 0

Begin completing the square.

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + -6x2 + 18 + x4 = 0 + 18

Reorder the terms:
-18 + 18 + -6x2 + x4 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -6x2 + x4 = 0 + 18
-6x2 + x4 = 0 + 18

Combine like terms: 0 + 18 = 18
-6x2 + x4 = 18

The x term is -6x2.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x2 + 9 + x4 = 18 + 9

Reorder the terms:
9 + -6x2 + x4 = 18 + 9

Combine like terms: 18 + 9 = 27
9 + -6x2 + x4 = 27

Factor a perfect square on the left side:
(x2 + -3)(x2 + -3) = 27

Calculate the square root of the right side: 5.196152423

Break this problem into two subproblems by setting 
(x2 + -3) equal to 5.196152423 and -5.196152423.

Subproblem 1

x2 + -3 = 5.196152423 Simplifying x2 + -3 = 5.196152423 Reorder the terms: -3 + x2 = 5.196152423 Solving -3 + x2 = 5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x2 = 5.196152423 + 3 Combine like terms: -3 + 3 = 0 0 + x2 = 5.196152423 + 3 x2 = 5.196152423 + 3 Combine like terms: 5.196152423 + 3 = 8.196152423 x2 = 8.196152423 Simplifying x2 = 8.196152423 Take the square root of each side: x = {-2.862892318, 2.862892318}

Subproblem 2

x2 + -3 = -5.196152423 Simplifying x2 + -3 = -5.196152423 Reorder the terms: -3 + x2 = -5.196152423 Solving -3 + x2 = -5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x2 = -5.196152423 + 3 Combine like terms: -3 + 3 = 0 0 + x2 = -5.196152423 + 3 x2 = -5.196152423 + 3 Combine like terms: -5.196152423 + 3 = -2.196152423 x2 = -2.196152423 Simplifying x2 = -2.196152423 Reorder the terms: 2.196152423 + x2 = -2.196152423 + 2.196152423 Combine like terms: -2.196152423 + 2.196152423 = 0.000000000 2.196152423 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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