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Simplifying -1(n + 2) = 15(n + 7) * n Reorder the terms: -1(2 + n) = 15(n + 7) * n (2 * -1 + n * -1) = 15(n + 7) * n (-2 + -1n) = 15(n + 7) * n Reorder the terms: -2 + -1n = 15(7 + n) * n Reorder the terms for easier multiplication: -2 + -1n = 15n(7 + n) -2 + -1n = (7 * 15n + n * 15n) -2 + -1n = (105n + 15n2) Solving -2 + -1n = 105n + 15n2 Solving for variable 'n'. Combine like terms: -1n + -105n = -106n -2 + -106n + -15n2 = 105n + 15n2 + -105n + -15n2 Reorder the terms: -2 + -106n + -15n2 = 105n + -105n + 15n2 + -15n2 Combine like terms: 105n + -105n = 0 -2 + -106n + -15n2 = 0 + 15n2 + -15n2 -2 + -106n + -15n2 = 15n2 + -15n2 Combine like terms: 15n2 + -15n2 = 0 -2 + -106n + -15n2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(2 + 106n + 15n2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(2 + 106n + 15n2)' equal to zero and attempt to solve: Simplifying 2 + 106n + 15n2 = 0 Solving 2 + 106n + 15n2 = 0 Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. 0.1333333333 + 7.066666667n + n2 = 0 Move the constant term to the right: Add '-0.1333333333' to each side of the equation. 0.1333333333 + 7.066666667n + -0.1333333333 + n2 = 0 + -0.1333333333 Reorder the terms: 0.1333333333 + -0.1333333333 + 7.066666667n + n2 = 0 + -0.1333333333 Combine like terms: 0.1333333333 + -0.1333333333 = 0.0000000000 0.0000000000 + 7.066666667n + n2 = 0 + -0.1333333333 7.066666667n + n2 = 0 + -0.1333333333 Combine like terms: 0 + -0.1333333333 = -0.1333333333 7.066666667n + n2 = -0.1333333333 The n term is 7.066666667n. Take half its coefficient (3.533333334). Square it (12.48444445) and add it to both sides. Add '12.48444445' to each side of the equation. 7.066666667n + 12.48444445 + n2 = -0.1333333333 + 12.48444445 Reorder the terms: 12.48444445 + 7.066666667n + n2 = -0.1333333333 + 12.48444445 Combine like terms: -0.1333333333 + 12.48444445 = 12.3511111167 12.48444445 + 7.066666667n + n2 = 12.3511111167 Factor a perfect square on the left side: (n + 3.533333334)(n + 3.533333334) = 12.3511111167 Calculate the square root of the right side: 3.514414762 Break this problem into two subproblems by setting (n + 3.533333334) equal to 3.514414762 and -3.514414762.Subproblem 1
n + 3.533333334 = 3.514414762 Simplifying n + 3.533333334 = 3.514414762 Reorder the terms: 3.533333334 + n = 3.514414762 Solving 3.533333334 + n = 3.514414762 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.533333334' to each side of the equation. 3.533333334 + -3.533333334 + n = 3.514414762 + -3.533333334 Combine like terms: 3.533333334 + -3.533333334 = 0.000000000 0.000000000 + n = 3.514414762 + -3.533333334 n = 3.514414762 + -3.533333334 Combine like terms: 3.514414762 + -3.533333334 = -0.018918572 n = -0.018918572 Simplifying n = -0.018918572Subproblem 2
n + 3.533333334 = -3.514414762 Simplifying n + 3.533333334 = -3.514414762 Reorder the terms: 3.533333334 + n = -3.514414762 Solving 3.533333334 + n = -3.514414762 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.533333334' to each side of the equation. 3.533333334 + -3.533333334 + n = -3.514414762 + -3.533333334 Combine like terms: 3.533333334 + -3.533333334 = 0.000000000 0.000000000 + n = -3.514414762 + -3.533333334 n = -3.514414762 + -3.533333334 Combine like terms: -3.514414762 + -3.533333334 = -7.047748096 n = -7.047748096 Simplifying n = -7.047748096Solution
The solution to the problem is based on the solutions from the subproblems. n = {-0.018918572, -7.047748096}Solution
n = {-0.018918572, -7.047748096}
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