3(-2u^2+5)=

Solution for 3(-2u^2+5)= equation:

Simplifying
3(-2u2 + 5) = 0

Reorder the terms:
3(5 + -2u2) = 0
(5 * 3 + -2u2 * 3) = 0
(15 + -6u2) = 0

Solving
15 + -6u2 = 0

Solving for variable 'u'.

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

Add '-15' to each side of the equation.
15 + -15 + -6u2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -6u2 = 0 + -15
-6u2 = 0 + -15

Combine like terms: 0 + -15 = -15
-6u2 = -15

Divide each side by '-6'.
u2 = 2.5

Simplifying
u2 = 2.5

Take the square root of each side:
u = {-1.58113883, 1.58113883}