4d^2-39+72=0

Solution for 4d^2-39+72=0 equation:

Simplifying
4d2 + -39 + 72 = 0

Reorder the terms:
-39 + 72 + 4d2 = 0

Combine like terms: -39 + 72 = 33
33 + 4d2 = 0

Solving
33 + 4d2 = 0

Solving for variable 'd'.

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

Add '-33' to each side of the equation.
33 + -33 + 4d2 = 0 + -33

Combine like terms: 33 + -33 = 0
0 + 4d2 = 0 + -33
4d2 = 0 + -33

Combine like terms: 0 + -33 = -33
4d2 = -33

Divide each side by '4'.
d2 = -8.25

Simplifying
d2 = -8.25

Reorder the terms:
8.25 + d2 = -8.25 + 8.25

Combine like terms: -8.25 + 8.25 = 0.00
8.25 + d2 = 0.00

The solution to this equation could not be determined.