3u^2-5=2u

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Solution for 3u^2-5=2u equation:


Simplifying
3u2 + -5 = 2u

Reorder the terms:
-5 + 3u2 = 2u

Solving
-5 + 3u2 = 2u

Solving for variable 'u'.

Reorder the terms:
-5 + -2u + 3u2 = 2u + -2u

Combine like terms: 2u + -2u = 0
-5 + -2u + 3u2 = 0

Factor a trinomial.
(-1 + -1u)(5 + -3u) = 0

Subproblem 1

Set the factor '(-1 + -1u)' equal to zero and attempt to solve: Simplifying -1 + -1u = 0 Solving -1 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1u = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1u = 0 + 1 -1u = 0 + 1 Combine like terms: 0 + 1 = 1 -1u = 1 Divide each side by '-1'. u = -1 Simplifying u = -1

Subproblem 2

Set the factor '(5 + -3u)' equal to zero and attempt to solve: Simplifying 5 + -3u = 0 Solving 5 + -3u = 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 + -3u = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3u = 0 + -5 -3u = 0 + -5 Combine like terms: 0 + -5 = -5 -3u = -5 Divide each side by '-3'. u = 1.666666667 Simplifying u = 1.666666667

Solution

u = {-1, 1.666666667}

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