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Simplifying
9 + -49u2 = 0
Solving
9 + -49u2 = 0
Solving for variable 'u'.
Move all terms containing u to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + -49u2 = 0 + -9
Combine like terms: 9 + -9 = 0
0 + -49u2 = 0 + -9
-49u2 = 0 + -9
Combine like terms: 0 + -9 = -9
-49u2 = -9
Divide each side by '-49'.
u2 = 0.1836734694
Simplifying
u2 = 0.1836734694
Take the square root of each side:
u = {-0.428571429, 0.428571429}
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