15d^2-7-2=0

Solution for 15d^2-7-2=0 equation:

Simplifying
15d2 + -7 + -2 = 0

Reorder the terms:
-7 + -2 + 15d2 = 0

Combine like terms: -7 + -2 = -9
-9 + 15d2 = 0

Solving
-9 + 15d2 = 0

Solving for variable 'd'.

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

Add '9' to each side of the equation.
-9 + 9 + 15d2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 15d2 = 0 + 9
15d2 = 0 + 9

Combine like terms: 0 + 9 = 9
15d2 = 9

Divide each side by '15'.
d2 = 0.6

Simplifying
d2 = 0.6

Take the square root of each side:
d = {-0.774596669, 0.774596669}