X^4-21=0

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Solution for X^4-21=0 equation:


Simplifying
X4 + -21 = 0

Reorder the terms:
-21 + X4 = 0

Solving
-21 + X4 = 0

Solving for variable 'X'.

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

Add '21' to each side of the equation.
-21 + 21 + X4 = 0 + 21

Combine like terms: -21 + 21 = 0
0 + X4 = 0 + 21
X4 = 0 + 21

Combine like terms: 0 + 21 = 21
X4 = 21

Simplifying
X4 = 21

Reorder the terms:
-21 + X4 = 21 + -21

Combine like terms: 21 + -21 = 0
-21 + X4 = 0

The solution to this equation could not be determined.

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