7(2n-3)6n-12=

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Solution for 7(2n-3)6n-12= equation:


Simplifying
7(2n + -3) * 6n + -12 = 0

Reorder the terms:
7(-3 + 2n) * 6n + -12 = 0

Reorder the terms for easier multiplication:
7 * 6n(-3 + 2n) + -12 = 0

Multiply 7 * 6
42n(-3 + 2n) + -12 = 0
(-3 * 42n + 2n * 42n) + -12 = 0
(-126n + 84n2) + -12 = 0

Reorder the terms:
-12 + -126n + 84n2 = 0

Solving
-12 + -126n + 84n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-2 + -21n + 14n2) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-2 + -21n + 14n2)' equal to zero and attempt to solve: Simplifying -2 + -21n + 14n2 = 0 Solving -2 + -21n + 14n2 = 0 Begin completing the square. Divide all terms by 14 the coefficient of the squared term: Divide each side by '14'. -0.1428571429 + -1.5n + n2 = 0 Move the constant term to the right: Add '0.1428571429' to each side of the equation. -0.1428571429 + -1.5n + 0.1428571429 + n2 = 0 + 0.1428571429 Reorder the terms: -0.1428571429 + 0.1428571429 + -1.5n + n2 = 0 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + -1.5n + n2 = 0 + 0.1428571429 -1.5n + n2 = 0 + 0.1428571429 Combine like terms: 0 + 0.1428571429 = 0.1428571429 -1.5n + n2 = 0.1428571429 The n term is -1.5n. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5n + 0.5625 + n2 = 0.1428571429 + 0.5625 Reorder the terms: 0.5625 + -1.5n + n2 = 0.1428571429 + 0.5625 Combine like terms: 0.1428571429 + 0.5625 = 0.7053571429 0.5625 + -1.5n + n2 = 0.7053571429 Factor a perfect square on the left side: (n + -0.75)(n + -0.75) = 0.7053571429 Calculate the square root of the right side: 0.83985543 Break this problem into two subproblems by setting (n + -0.75) equal to 0.83985543 and -0.83985543.

Subproblem 1

n + -0.75 = 0.83985543 Simplifying n + -0.75 = 0.83985543 Reorder the terms: -0.75 + n = 0.83985543 Solving -0.75 + n = 0.83985543 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + n = 0.83985543 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + n = 0.83985543 + 0.75 n = 0.83985543 + 0.75 Combine like terms: 0.83985543 + 0.75 = 1.58985543 n = 1.58985543 Simplifying n = 1.58985543

Subproblem 2

n + -0.75 = -0.83985543 Simplifying n + -0.75 = -0.83985543 Reorder the terms: -0.75 + n = -0.83985543 Solving -0.75 + n = -0.83985543 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + n = -0.83985543 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + n = -0.83985543 + 0.75 n = -0.83985543 + 0.75 Combine like terms: -0.83985543 + 0.75 = -0.08985543 n = -0.08985543 Simplifying n = -0.08985543

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.58985543, -0.08985543}

Solution

n = {1.58985543, -0.08985543}

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