4u^2+84=0

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Solution for 4u^2+84=0 equation:


Simplifying
4u2 + 84 = 0

Reorder the terms:
84 + 4u2 = 0

Solving
84 + 4u2 = 0

Solving for variable 'u'.

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

Add '-84' to each side of the equation.
84 + -84 + 4u2 = 0 + -84

Combine like terms: 84 + -84 = 0
0 + 4u2 = 0 + -84
4u2 = 0 + -84

Combine like terms: 0 + -84 = -84
4u2 = -84

Divide each side by '4'.
u2 = -21

Simplifying
u2 = -21

Reorder the terms:
21 + u2 = -21 + 21

Combine like terms: -21 + 21 = 0
21 + u2 = 0

The solution to this equation could not be determined.

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