8n^2=4+12n

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Solution for 8n^2=4+12n equation:


Simplifying
8n2 = 4 + 12n

Solving
8n2 = 4 + 12n

Solving for variable 'n'.

Reorder the terms:
-4 + -12n + 8n2 = 4 + 12n + -4 + -12n

Reorder the terms:
-4 + -12n + 8n2 = 4 + -4 + 12n + -12n

Combine like terms: 4 + -4 = 0
-4 + -12n + 8n2 = 0 + 12n + -12n
-4 + -12n + 8n2 = 12n + -12n

Combine like terms: 12n + -12n = 0
-4 + -12n + 8n2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -3n + 2n2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1 + -3n + 2n2)' equal to zero and attempt to solve: Simplifying -1 + -3n + 2n2 = 0 Solving -1 + -3n + 2n2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -0.5 + -1.5n + n2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + -1.5n + 0.5 + n2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + -1.5n + n2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + -1.5n + n2 = 0 + 0.5 -1.5n + n2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 -1.5n + n2 = 0.5 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 = 0.5 + 0.5625 Reorder the terms: 0.5625 + -1.5n + n2 = 0.5 + 0.5625 Combine like terms: 0.5 + 0.5625 = 1.0625 0.5625 + -1.5n + n2 = 1.0625 Factor a perfect square on the left side: (n + -0.75)(n + -0.75) = 1.0625 Calculate the square root of the right side: 1.030776406 Break this problem into two subproblems by setting (n + -0.75) equal to 1.030776406 and -1.030776406.

Subproblem 1

n + -0.75 = 1.030776406 Simplifying n + -0.75 = 1.030776406 Reorder the terms: -0.75 + n = 1.030776406 Solving -0.75 + n = 1.030776406 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 = 1.030776406 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + n = 1.030776406 + 0.75 n = 1.030776406 + 0.75 Combine like terms: 1.030776406 + 0.75 = 1.780776406 n = 1.780776406 Simplifying n = 1.780776406

Subproblem 2

n + -0.75 = -1.030776406 Simplifying n + -0.75 = -1.030776406 Reorder the terms: -0.75 + n = -1.030776406 Solving -0.75 + n = -1.030776406 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 = -1.030776406 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + n = -1.030776406 + 0.75 n = -1.030776406 + 0.75 Combine like terms: -1.030776406 + 0.75 = -0.280776406 n = -0.280776406 Simplifying n = -0.280776406

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.780776406, -0.280776406}

Solution

n = {1.780776406, -0.280776406}

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