4x^2+81=

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Solution for 4x^2+81= equation:


Simplifying
4x2 + 81 = 0

Reorder the terms:
81 + 4x2 = 0

Solving
81 + 4x2 = 0

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + 4x2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 4x2 = 0 + -81
4x2 = 0 + -81

Combine like terms: 0 + -81 = -81
4x2 = -81

Divide each side by '4'.
x2 = -20.25

Simplifying
x2 = -20.25

Reorder the terms:
20.25 + x2 = -20.25 + 20.25

Combine like terms: -20.25 + 20.25 = 0.00
20.25 + x2 = 0.00

The solution to this equation could not be determined.

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