4d^2+19d^2-5=0

Solution for 4d^2+19d^2-5=0 equation:

Simplifying
4d2 + 19d2 + -5 = 0

Reorder the terms:
-5 + 4d2 + 19d2 = 0

Combine like terms: 4d2 + 19d2 = 23d2
-5 + 23d2 = 0

Solving
-5 + 23d2 = 0

Solving for variable 'd'.

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

Add '5' to each side of the equation.
-5 + 5 + 23d2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 23d2 = 0 + 5
23d2 = 0 + 5

Combine like terms: 0 + 5 = 5
23d2 = 5

Divide each side by '23'.
d2 = 0.2173913043

Simplifying
d2 = 0.2173913043

Take the square root of each side:
d = {-0.466252404, 0.466252404}