-x^4+34x^2+225=0

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Solution for -x^4+34x^2+225=0 equation:


Simplifying
-1x4 + 34x2 + 225 = 0

Reorder the terms:
225 + 34x2 + -1x4 = 0

Solving
225 + 34x2 + -1x4 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-225 + -34x2 + x4 = 0

Move the constant term to the right:

Add '225' to each side of the equation.
-225 + -34x2 + 225 + x4 = 0 + 225

Reorder the terms:
-225 + 225 + -34x2 + x4 = 0 + 225

Combine like terms: -225 + 225 = 0
0 + -34x2 + x4 = 0 + 225
-34x2 + x4 = 0 + 225

Combine like terms: 0 + 225 = 225
-34x2 + x4 = 225

The x term is -34x2.  Take half its coefficient (-17).
Square it (289) and add it to both sides.

Add '289' to each side of the equation.
-34x2 + 289 + x4 = 225 + 289

Reorder the terms:
289 + -34x2 + x4 = 225 + 289

Combine like terms: 225 + 289 = 514
289 + -34x2 + x4 = 514

Factor a perfect square on the left side:
(x2 + -17)(x2 + -17) = 514

Calculate the square root of the right side: 22.671568098

Break this problem into two subproblems by setting 
(x2 + -17) equal to 22.671568098 and -22.671568098.

Subproblem 1

x2 + -17 = 22.671568098 Simplifying x2 + -17 = 22.671568098 Reorder the terms: -17 + x2 = 22.671568098 Solving -17 + x2 = 22.671568098 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + x2 = 22.671568098 + 17 Combine like terms: -17 + 17 = 0 0 + x2 = 22.671568098 + 17 x2 = 22.671568098 + 17 Combine like terms: 22.671568098 + 17 = 39.671568098 x2 = 39.671568098 Simplifying x2 = 39.671568098 Take the square root of each side: x = {-6.298536981, 6.298536981}

Subproblem 2

x2 + -17 = -22.671568098 Simplifying x2 + -17 = -22.671568098 Reorder the terms: -17 + x2 = -22.671568098 Solving -17 + x2 = -22.671568098 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + x2 = -22.671568098 + 17 Combine like terms: -17 + 17 = 0 0 + x2 = -22.671568098 + 17 x2 = -22.671568098 + 17 Combine like terms: -22.671568098 + 17 = -5.671568098 x2 = -5.671568098 Simplifying x2 = -5.671568098 Reorder the terms: 5.671568098 + x2 = -5.671568098 + 5.671568098 Combine like terms: -5.671568098 + 5.671568098 = 0.000000000 5.671568098 + 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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