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Simplifying
81q2 + -25 = 0
Reorder the terms:
-25 + 81q2 = 0
Solving
-25 + 81q2 = 0
Solving for variable 'q'.
Move all terms containing q to the left, all other terms to the right.
Add '25' to each side of the equation.
-25 + 25 + 81q2 = 0 + 25
Combine like terms: -25 + 25 = 0
0 + 81q2 = 0 + 25
81q2 = 0 + 25
Combine like terms: 0 + 25 = 25
81q2 = 25
Divide each side by '81'.
q2 = 0.3086419753
Simplifying
q2 = 0.3086419753
Take the square root of each side:
q = {-0.555555556, 0.555555556}
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