81x^2+9=73

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Solution for 81x^2+9=73 equation:


Simplifying
81x2 + 9 = 73

Reorder the terms:
9 + 81x2 = 73

Solving
9 + 81x2 = 73

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 81x2 = 73 + -9

Combine like terms: 9 + -9 = 0
0 + 81x2 = 73 + -9
81x2 = 73 + -9

Combine like terms: 73 + -9 = 64
81x2 = 64

Divide each side by '81'.
x2 = 0.7901234568

Simplifying
x2 = 0.7901234568

Take the square root of each side:
x = {-0.888888889, 0.888888889}

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