3(5u+6)4(4u-3)=99

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Solution for 3(5u+6)4(4u-3)=99 equation:


Simplifying
3(5u + 6) * 4(4u + -3) = 99

Reorder the terms:
3(6 + 5u) * 4(4u + -3) = 99

Reorder the terms:
3(6 + 5u) * 4(-3 + 4u) = 99

Reorder the terms for easier multiplication:
3 * 4(6 + 5u)(-3 + 4u) = 99

Multiply 3 * 4
12(6 + 5u)(-3 + 4u) = 99

Multiply (6 + 5u) * (-3 + 4u)
12(6(-3 + 4u) + 5u * (-3 + 4u)) = 99
12((-3 * 6 + 4u * 6) + 5u * (-3 + 4u)) = 99
12((-18 + 24u) + 5u * (-3 + 4u)) = 99
12(-18 + 24u + (-3 * 5u + 4u * 5u)) = 99
12(-18 + 24u + (-15u + 20u2)) = 99

Combine like terms: 24u + -15u = 9u
12(-18 + 9u + 20u2) = 99
(-18 * 12 + 9u * 12 + 20u2 * 12) = 99
(-216 + 108u + 240u2) = 99

Solving
-216 + 108u + 240u2 = 99

Solving for variable 'u'.

Reorder the terms:
-216 + -99 + 108u + 240u2 = 99 + -99

Combine like terms: -216 + -99 = -315
-315 + 108u + 240u2 = 99 + -99

Combine like terms: 99 + -99 = 0
-315 + 108u + 240u2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-105 + 36u + 80u2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-105 + 36u + 80u2)' equal to zero and attempt to solve: Simplifying -105 + 36u + 80u2 = 0 Solving -105 + 36u + 80u2 = 0 Begin completing the square. Divide all terms by 80 the coefficient of the squared term: Divide each side by '80'. -1.3125 + 0.45u + u2 = 0.0 Move the constant term to the right: Add '1.3125' to each side of the equation. -1.3125 + 0.45u + 1.3125 + u2 = 0.0 + 1.3125 Reorder the terms: -1.3125 + 1.3125 + 0.45u + u2 = 0.0 + 1.3125 Combine like terms: -1.3125 + 1.3125 = 0.0000 0.0000 + 0.45u + u2 = 0.0 + 1.3125 0.45u + u2 = 0.0 + 1.3125 Combine like terms: 0.0 + 1.3125 = 1.3125 0.45u + u2 = 1.3125 The u term is 0.45u. Take half its coefficient (0.225). Square it (0.050625) and add it to both sides. Add '0.050625' to each side of the equation. 0.45u + 0.050625 + u2 = 1.3125 + 0.050625 Reorder the terms: 0.050625 + 0.45u + u2 = 1.3125 + 0.050625 Combine like terms: 1.3125 + 0.050625 = 1.363125 0.050625 + 0.45u + u2 = 1.363125 Factor a perfect square on the left side: (u + 0.225)(u + 0.225) = 1.363125 Calculate the square root of the right side: 1.167529443 Break this problem into two subproblems by setting (u + 0.225) equal to 1.167529443 and -1.167529443.

Subproblem 1

u + 0.225 = 1.167529443 Simplifying u + 0.225 = 1.167529443 Reorder the terms: 0.225 + u = 1.167529443 Solving 0.225 + u = 1.167529443 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.225' to each side of the equation. 0.225 + -0.225 + u = 1.167529443 + -0.225 Combine like terms: 0.225 + -0.225 = 0.000 0.000 + u = 1.167529443 + -0.225 u = 1.167529443 + -0.225 Combine like terms: 1.167529443 + -0.225 = 0.942529443 u = 0.942529443 Simplifying u = 0.942529443

Subproblem 2

u + 0.225 = -1.167529443 Simplifying u + 0.225 = -1.167529443 Reorder the terms: 0.225 + u = -1.167529443 Solving 0.225 + u = -1.167529443 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.225' to each side of the equation. 0.225 + -0.225 + u = -1.167529443 + -0.225 Combine like terms: 0.225 + -0.225 = 0.000 0.000 + u = -1.167529443 + -0.225 u = -1.167529443 + -0.225 Combine like terms: -1.167529443 + -0.225 = -1.392529443 u = -1.392529443 Simplifying u = -1.392529443

Solution

The solution to the problem is based on the solutions from the subproblems. u = {0.942529443, -1.392529443}

Solution

u = {0.942529443, -1.392529443}

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