7u^2-33u+20=0

Solution for 7u^2-33u+20=0 equation:

Simplifying
7u2 + -33u + 20 = 0

Reorder the terms:
20 + -33u + 7u2 = 0

Solving
20 + -33u + 7u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(5 + -7u)(4 + -1u) = 0

Subproblem 1
Set the factor '(5 + -7u)' equal to zero and attempt to solve:

Simplifying
5 + -7u = 0

Solving
5 + -7u = 0

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

Add '-5' to each side of the equation.
5 + -5 + -7u = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -7u = 0 + -5
-7u = 0 + -5

Combine like terms: 0 + -5 = -5
-7u = -5

Divide each side by '-7'.
u = 0.7142857143

Simplifying
u = 0.7142857143
Subproblem 2
Set the factor '(4 + -1u)' equal to zero and attempt to solve:

Simplifying
4 + -1u = 0

Solving
4 + -1u = 0

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

Add '-4' to each side of the equation.
4 + -4 + -1u = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1u = 0 + -4
-1u = 0 + -4

Combine like terms: 0 + -4 = -4
-1u = -4

Divide each side by '-1'.
u = 4

Simplifying
u = 4
Solution
u = {0.7142857143, 4}