3z^2-13=

Solution for 3z^2-13= equation:

Simplifying
3z2 + -13 = 0

Reorder the terms:
-13 + 3z2 = 0

Solving
-13 + 3z2 = 0

Solving for variable 'z'.

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

Add '13' to each side of the equation.
-13 + 13 + 3z2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 3z2 = 0 + 13
3z2 = 0 + 13

Combine like terms: 0 + 13 = 13
3z2 = 13

Divide each side by '3'.
z2 = 4.333333333

Simplifying
z2 = 4.333333333

Take the square root of each side:
z = {-2.081665999, 2.081665999}