0=9u^2+30u+25

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Solution for 0=9u^2+30u+25 equation:


Simplifying
0 = 9u2 + 30u + 25

Reorder the terms:
0 = 25 + 30u + 9u2

Solving
0 = 25 + 30u + 9u2

Solving for variable 'u'.

Combine like terms: 0 + -25 = -25
-25 + -30u + -9u2 = 25 + 30u + 9u2 + -25 + -30u + -9u2

Reorder the terms:
-25 + -30u + -9u2 = 25 + -25 + 30u + -30u + 9u2 + -9u2

Combine like terms: 25 + -25 = 0
-25 + -30u + -9u2 = 0 + 30u + -30u + 9u2 + -9u2
-25 + -30u + -9u2 = 30u + -30u + 9u2 + -9u2

Combine like terms: 30u + -30u = 0
-25 + -30u + -9u2 = 0 + 9u2 + -9u2
-25 + -30u + -9u2 = 9u2 + -9u2

Combine like terms: 9u2 + -9u2 = 0
-25 + -30u + -9u2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(25 + 30u + 9u2) = 0

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

Ignore the factor -1.

Subproblem 1

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

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 = {-1.666666667, -1.666666667}

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