-4+9x^2=0

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Solution for -4+9x^2=0 equation: 


Simplifying
-4 + 9x2 = 0

Solving
-4 + 9x2 = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 9x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 9x2 = 0 + 4
9x2 = 0 + 4

Combine like terms: 0 + 4 = 4
9x2 = 4

Divide each side by '9'.
x2 = 0.4444444444

Simplifying
x2 = 0.4444444444

Take the square root of each side:
x = {-0.666666667, 0.666666667}

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