(X^2)2-9=0

Solution for (X^2)2-9=0 equation:

Simplifying
(X2) * 2 + -9 = 0

Reorder the terms for easier multiplication:
2X2 + -9 = 0

Reorder the terms:
-9 + 2X2 = 0

Solving
-9 + 2X2 = 0

Solving for variable 'X'.

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

Add '9' to each side of the equation.
-9 + 9 + 2X2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 2X2 = 0 + 9
2X2 = 0 + 9

Combine like terms: 0 + 9 = 9
2X2 = 9

Divide each side by '2'.
X2 = 4.5

Simplifying
X2 = 4.5

Take the square root of each side:
X = {-2.121320344, 2.121320344}