3n^2+17n-4002=0

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Solution for 3n^2+17n-4002=0 equation:


Simplifying
3n2 + 17n + -4002 = 0

Reorder the terms:
-4002 + 17n + 3n2 = 0

Solving
-4002 + 17n + 3n2 = 0

Solving for variable 'n'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-1334 + 5.666666667n + n2 = 0

Move the constant term to the right:

Add '1334' to each side of the equation.
-1334 + 5.666666667n + 1334 + n2 = 0 + 1334

Reorder the terms:
-1334 + 1334 + 5.666666667n + n2 = 0 + 1334

Combine like terms: -1334 + 1334 = 0
0 + 5.666666667n + n2 = 0 + 1334
5.666666667n + n2 = 0 + 1334

Combine like terms: 0 + 1334 = 1334
5.666666667n + n2 = 1334

The n term is 5.666666667n.  Take half its coefficient (2.833333334).
Square it (8.027777782) and add it to both sides.

Add '8.027777782' to each side of the equation.
5.666666667n + 8.027777782 + n2 = 1334 + 8.027777782

Reorder the terms:
8.027777782 + 5.666666667n + n2 = 1334 + 8.027777782

Combine like terms: 1334 + 8.027777782 = 1342.027777782
8.027777782 + 5.666666667n + n2 = 1342.027777782

Factor a perfect square on the left side:
(n + 2.833333334)(n + 2.833333334) = 1342.027777782

Calculate the square root of the right side: 36.633697299

Break this problem into two subproblems by setting 
(n + 2.833333334) equal to 36.633697299 and -36.633697299.

Subproblem 1

n + 2.833333334 = 36.633697299 Simplifying n + 2.833333334 = 36.633697299 Reorder the terms: 2.833333334 + n = 36.633697299 Solving 2.833333334 + n = 36.633697299 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + n = 36.633697299 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + n = 36.633697299 + -2.833333334 n = 36.633697299 + -2.833333334 Combine like terms: 36.633697299 + -2.833333334 = 33.800363965 n = 33.800363965 Simplifying n = 33.800363965

Subproblem 2

n + 2.833333334 = -36.633697299 Simplifying n + 2.833333334 = -36.633697299 Reorder the terms: 2.833333334 + n = -36.633697299 Solving 2.833333334 + n = -36.633697299 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + n = -36.633697299 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + n = -36.633697299 + -2.833333334 n = -36.633697299 + -2.833333334 Combine like terms: -36.633697299 + -2.833333334 = -39.467030633 n = -39.467030633 Simplifying n = -39.467030633

Solution

The solution to the problem is based on the solutions from the subproblems. n = {33.800363965, -39.467030633}

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