x^2+21=-4

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Solution for x^2+21=-4 equation:


Simplifying
x2 + 21 = -4

Reorder the terms:
21 + x2 = -4

Solving
21 + x2 = -4

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 + x2 = -4 + -21

Combine like terms: 21 + -21 = 0
0 + x2 = -4 + -21
x2 = -4 + -21

Combine like terms: -4 + -21 = -25
x2 = -25

Simplifying
x2 = -25

Reorder the terms:
25 + x2 = -25 + 25

Combine like terms: -25 + 25 = 0
25 + x2 = 0

The solution to this equation could not be determined.

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