(4u+6)(9-u)=0

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Solution for (4u+6)(9-u)=0 equation:


Simplifying
(4u + 6)(9 + -1u) = 0

Reorder the terms:
(6 + 4u)(9 + -1u) = 0

Multiply (6 + 4u) * (9 + -1u)
(6(9 + -1u) + 4u * (9 + -1u)) = 0
((9 * 6 + -1u * 6) + 4u * (9 + -1u)) = 0
((54 + -6u) + 4u * (9 + -1u)) = 0
(54 + -6u + (9 * 4u + -1u * 4u)) = 0
(54 + -6u + (36u + -4u2)) = 0

Combine like terms: -6u + 36u = 30u
(54 + 30u + -4u2) = 0

Solving
54 + 30u + -4u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '2'.
2(27 + 15u + -2u2) = 0

Factor a trinomial.
2((9 + -1u)(3 + 2u)) = 0

Ignore the factor 2.

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 + 2u)' equal to zero and attempt to solve: Simplifying 3 + 2u = 0 Solving 3 + 2u = 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 + 2u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2u = 0 + -3 2u = 0 + -3 Combine like terms: 0 + -3 = -3 2u = -3 Divide each side by '2'. u = -1.5 Simplifying u = -1.5

Solution

u = {9, -1.5}

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