20z^2-140+245=0

Solution for 20z^2-140+245=0 equation:

Simplifying
20z2 + -140 + 245 = 0

Reorder the terms:
-140 + 245 + 20z2 = 0

Combine like terms: -140 + 245 = 105
105 + 20z2 = 0

Solving
105 + 20z2 = 0

Solving for variable 'z'.

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

Add '-105' to each side of the equation.
105 + -105 + 20z2 = 0 + -105

Combine like terms: 105 + -105 = 0
0 + 20z2 = 0 + -105
20z2 = 0 + -105

Combine like terms: 0 + -105 = -105
20z2 = -105

Divide each side by '20'.
z2 = -5.25

Simplifying
z2 = -5.25

Reorder the terms:
5.25 + z2 = -5.25 + 5.25

Combine like terms: -5.25 + 5.25 = 0.00
5.25 + z2 = 0.00

The solution to this equation could not be determined.