t^2-81u^2=0

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Solution for t^2-81u^2=0 equation:


Simplifying
t2 + -81u2 = 0

Solving
t2 + -81u2 = 0

Solving for variable 't'.

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

Add '81u2' to each side of the equation.
t2 + -81u2 + 81u2 = 0 + 81u2

Combine like terms: -81u2 + 81u2 = 0
t2 + 0 = 0 + 81u2
t2 = 0 + 81u2
Remove the zero:
t2 = 81u2

Simplifying
t2 = 81u2

Take the square root of each side:
t = {-9u, 9u}

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