28z^2-11+2=0

Solution for 28z^2-11+2=0 equation:

Simplifying
28z2 + -11 + 2 = 0

Reorder the terms:
-11 + 2 + 28z2 = 0

Combine like terms: -11 + 2 = -9
-9 + 28z2 = 0

Solving
-9 + 28z2 = 0

Solving for variable 'z'.

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

Add '9' to each side of the equation.
-9 + 9 + 28z2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 28z2 = 0 + 9
28z2 = 0 + 9

Combine like terms: 0 + 9 = 9
28z2 = 9

Divide each side by '28'.
z2 = 0.3214285714

Simplifying
z2 = 0.3214285714

Take the square root of each side:
z = {-0.566946709, 0.566946709}