6=0.25d^2

Solution for 6=0.25d^2 equation:

Simplifying
6 = 0.25d2

Solving
6 = 0.25d2

Solving for variable 'd'.

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

Add '-0.25d2' to each side of the equation.
6 + -0.25d2 = 0.25d2 + -0.25d2

Combine like terms: 0.25d2 + -0.25d2 = 0.00
6 + -0.25d2 = 0.00

Add '-6' to each side of the equation.
6 + -6 + -0.25d2 = 0.00 + -6

Combine like terms: 6 + -6 = 0
0 + -0.25d2 = 0.00 + -6
-0.25d2 = 0.00 + -6

Combine like terms: 0.00 + -6 = -6
-0.25d2 = -6

Divide each side by '-0.25'.
d2 = 24

Simplifying
d2 = 24

Take the square root of each side:
d = {-4.898979486, 4.898979486}