t^2-9+t^2=

Solution for t^2-9+t^2= equation:

Simplifying
t2 + -9 + t2 = 0

Reorder the terms:
-9 + t2 + t2 = 0

Combine like terms: t2 + t2 = 2t2
-9 + 2t2 = 0

Solving
-9 + 2t2 = 0

Solving for variable 't'.

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

Add '9' to each side of the equation.
-9 + 9 + 2t2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 2t2 = 0 + 9
2t2 = 0 + 9

Combine like terms: 0 + 9 = 9
2t2 = 9

Divide each side by '2'.
t2 = 4.5

Simplifying
t2 = 4.5

Take the square root of each side:
t = {-2.121320344, 2.121320344}