5u^2-2u-72=0

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Solution for 5u^2-2u-72=0 equation:


Simplifying
5u2 + -2u + -72 = 0

Reorder the terms:
-72 + -2u + 5u2 = 0

Solving
-72 + -2u + 5u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-18 + -5u)(4 + -1u) = 0

Subproblem 1

Set the factor '(-18 + -5u)' equal to zero and attempt to solve: Simplifying -18 + -5u = 0 Solving -18 + -5u = 0 Move all terms containing u to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -5u = 0 + 18 Combine like terms: -18 + 18 = 0 0 + -5u = 0 + 18 -5u = 0 + 18 Combine like terms: 0 + 18 = 18 -5u = 18 Divide each side by '-5'. u = -3.6 Simplifying u = -3.6

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 = {-3.6, 4}

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