4n^2+6n-103=

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Solution for 4n^2+6n-103= equation:


Simplifying
4n2 + 6n + -103 = 0

Reorder the terms:
-103 + 6n + 4n2 = 0

Solving
-103 + 6n + 4n2 = 0

Solving for variable 'n'.

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

Divide each side by '4'.
-25.75 + 1.5n + n2 = 0

Move the constant term to the right:

Add '25.75' to each side of the equation.
-25.75 + 1.5n + 25.75 + n2 = 0 + 25.75

Reorder the terms:
-25.75 + 25.75 + 1.5n + n2 = 0 + 25.75

Combine like terms: -25.75 + 25.75 = 0.00
0.00 + 1.5n + n2 = 0 + 25.75
1.5n + n2 = 0 + 25.75

Combine like terms: 0 + 25.75 = 25.75
1.5n + n2 = 25.75

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 = 25.75 + 0.5625

Reorder the terms:
0.5625 + 1.5n + n2 = 25.75 + 0.5625

Combine like terms: 25.75 + 0.5625 = 26.3125
0.5625 + 1.5n + n2 = 26.3125

Factor a perfect square on the left side:
(n + 0.75)(n + 0.75) = 26.3125

Calculate the square root of the right side: 5.129571132

Break this problem into two subproblems by setting 
(n + 0.75) equal to 5.129571132 and -5.129571132.

Subproblem 1

n + 0.75 = 5.129571132 Simplifying n + 0.75 = 5.129571132 Reorder the terms: 0.75 + n = 5.129571132 Solving 0.75 + n = 5.129571132 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 = 5.129571132 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + n = 5.129571132 + -0.75 n = 5.129571132 + -0.75 Combine like terms: 5.129571132 + -0.75 = 4.379571132 n = 4.379571132 Simplifying n = 4.379571132

Subproblem 2

n + 0.75 = -5.129571132 Simplifying n + 0.75 = -5.129571132 Reorder the terms: 0.75 + n = -5.129571132 Solving 0.75 + n = -5.129571132 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 = -5.129571132 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + n = -5.129571132 + -0.75 n = -5.129571132 + -0.75 Combine like terms: -5.129571132 + -0.75 = -5.879571132 n = -5.879571132 Simplifying n = -5.879571132

Solution

The solution to the problem is based on the solutions from the subproblems. n = {4.379571132, -5.879571132}

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