9x^4=3x^2-25

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Solution for 9x^4=3x^2-25 equation:


Simplifying
9x4 = 3x2 + -25

Reorder the terms:
9x4 = -25 + 3x2

Solving
9x4 = -25 + 3x2

Solving for variable 'x'.

Reorder the terms:
25 + -3x2 + 9x4 = -25 + 3x2 + 25 + -3x2

Reorder the terms:
25 + -3x2 + 9x4 = -25 + 25 + 3x2 + -3x2

Combine like terms: -25 + 25 = 0
25 + -3x2 + 9x4 = 0 + 3x2 + -3x2
25 + -3x2 + 9x4 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
25 + -3x2 + 9x4 = 0

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

Divide each side by '9'.
2.777777778 + -0.3333333333x2 + x4 = 0

Move the constant term to the right:

Add '-2.777777778' to each side of the equation.
2.777777778 + -0.3333333333x2 + -2.777777778 + x4 = 0 + -2.777777778

Reorder the terms:
2.777777778 + -2.777777778 + -0.3333333333x2 + x4 = 0 + -2.777777778

Combine like terms: 2.777777778 + -2.777777778 = 0.000000000
0.000000000 + -0.3333333333x2 + x4 = 0 + -2.777777778
-0.3333333333x2 + x4 = 0 + -2.777777778

Combine like terms: 0 + -2.777777778 = -2.777777778
-0.3333333333x2 + x4 = -2.777777778

The x term is -0.3333333333x2.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333x2 + 0.02777777779 + x4 = -2.777777778 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333x2 + x4 = -2.777777778 + 0.02777777779

Combine like terms: -2.777777778 + 0.02777777779 = -2.75000000021
0.02777777779 + -0.3333333333x2 + x4 = -2.75000000021

Factor a perfect square on the left side:
(x2 + -0.1666666667)(x2 + -0.1666666667) = -2.75000000021

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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