(9+u)(4u-3)=0

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Solution for (9+u)(4u-3)=0 equation:


Simplifying
(9 + u)(4u + -3) = 0

Reorder the terms:
(9 + u)(-3 + 4u) = 0

Multiply (9 + u) * (-3 + 4u)
(9(-3 + 4u) + u(-3 + 4u)) = 0
((-3 * 9 + 4u * 9) + u(-3 + 4u)) = 0
((-27 + 36u) + u(-3 + 4u)) = 0
(-27 + 36u + (-3 * u + 4u * u)) = 0
(-27 + 36u + (-3u + 4u2)) = 0

Combine like terms: 36u + -3u = 33u
(-27 + 33u + 4u2) = 0

Solving
-27 + 33u + 4u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-9 + -1u)(3 + -4u) = 0

Subproblem 1

Set the factor '(-9 + -1u)' equal to zero and attempt to solve: Simplifying -9 + -1u = 0 Solving -9 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1u = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1u = 0 + 9 -1u = 0 + 9 Combine like terms: 0 + 9 = 9 -1u = 9 Divide each side by '-1'. u = -9 Simplifying u = -9

Subproblem 2

Set the factor '(3 + -4u)' equal to zero and attempt to solve: Simplifying 3 + -4u = 0 Solving 3 + -4u = 0 Move all terms containing u to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4u = 0 + -3 -4u = 0 + -3 Combine like terms: 0 + -3 = -3 -4u = -3 Divide each side by '-4'. u = 0.75 Simplifying u = 0.75

Solution

u = {-9, 0.75}

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