x^4+9X^2-400=0

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Solution for x^4+9X^2-400=0 equation:


Simplifying
x4 + 9X2 + -400 = 0

Reorder the terms:
-400 + 9X2 + x4 = 0

Solving
-400 + 9X2 + x4 = 0

Solving for variable 'X'.

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

Add '400' to each side of the equation.
-400 + 9X2 + 400 + x4 = 0 + 400

Reorder the terms:
-400 + 400 + 9X2 + x4 = 0 + 400

Combine like terms: -400 + 400 = 0
0 + 9X2 + x4 = 0 + 400
9X2 + x4 = 0 + 400

Combine like terms: 0 + 400 = 400
9X2 + x4 = 400

Add '-1x4' to each side of the equation.
9X2 + x4 + -1x4 = 400 + -1x4

Combine like terms: x4 + -1x4 = 0
9X2 + 0 = 400 + -1x4
9X2 = 400 + -1x4

Divide each side by '9'.
X2 = 44.44444444 + -0.1111111111x4

Simplifying
X2 = 44.44444444 + -0.1111111111x4

Reorder the terms:
-44.44444444 + X2 + 0.1111111111x4 = 44.44444444 + -0.1111111111x4 + -44.44444444 + 0.1111111111x4

Reorder the terms:
-44.44444444 + X2 + 0.1111111111x4 = 44.44444444 + -44.44444444 + -0.1111111111x4 + 0.1111111111x4

Combine like terms: 44.44444444 + -44.44444444 = 0.00000000
-44.44444444 + X2 + 0.1111111111x4 = 0.00000000 + -0.1111111111x4 + 0.1111111111x4
-44.44444444 + X2 + 0.1111111111x4 = -0.1111111111x4 + 0.1111111111x4

Combine like terms: -0.1111111111x4 + 0.1111111111x4 = 0.0000000000
-44.44444444 + X2 + 0.1111111111x4 = 0.0000000000

The solution to this equation could not be determined.

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