x^2(-x^2-49)=49(-x^2-49)

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Solution for x^2(-x^2-49)=49(-x^2-49) equation:


Simplifying
x2(-1x2 + -49) = 49(-1x2 + -49)

Reorder the terms:
x2(-49 + -1x2) = 49(-1x2 + -49)
(-49 * x2 + -1x2 * x2) = 49(-1x2 + -49)
(-49x2 + -1x4) = 49(-1x2 + -49)

Reorder the terms:
-49x2 + -1x4 = 49(-49 + -1x2)
-49x2 + -1x4 = (-49 * 49 + -1x2 * 49)
-49x2 + -1x4 = (-2401 + -49x2)

Add '49x2' to each side of the equation.
-49x2 + 49x2 + -1x4 = -2401 + -49x2 + 49x2

Combine like terms: -49x2 + 49x2 = 0
0 + -1x4 = -2401 + -49x2 + 49x2
-1x4 = -2401 + -49x2 + 49x2

Combine like terms: -49x2 + 49x2 = 0
-1x4 = -2401 + 0
-1x4 = -2401

Solving
-1x4 = -2401

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '-1'.
x4 = 2401

Simplifying
x4 = 2401

Reorder the terms:
-2401 + x4 = 2401 + -2401

Combine like terms: 2401 + -2401 = 0
-2401 + x4 = 0

Factor a difference between two squares.
(49 + x2)(-49 + x2) = 0

Factor a difference between two squares.
(49 + x2)((7 + x)(-7 + x)) = 0

Subproblem 1

Set the factor '(49 + x2)' equal to zero and attempt to solve: Simplifying 49 + x2 = 0 Solving 49 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-49' to each side of the equation. 49 + -49 + x2 = 0 + -49 Combine like terms: 49 + -49 = 0 0 + x2 = 0 + -49 x2 = 0 + -49 Combine like terms: 0 + -49 = -49 x2 = -49 Simplifying x2 = -49 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 3

Set the factor '(-7 + x)' equal to zero and attempt to solve: Simplifying -7 + x = 0 Solving -7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + x = 0 + 7 x = 0 + 7 Combine like terms: 0 + 7 = 7 x = 7 Simplifying x = 7

Solution

x = {-7, 7}

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