110n^2+21n=2

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Solution for 110n^2+21n=2 equation:


Simplifying
110n2 + 21n = 2

Reorder the terms:
21n + 110n2 = 2

Solving
21n + 110n2 = 2

Solving for variable 'n'.

Reorder the terms:
-2 + 21n + 110n2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 21n + 110n2 = 0

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

Divide each side by '110'.
-0.01818181818 + 0.1909090909n + n2 = 0

Move the constant term to the right:

Add '0.01818181818' to each side of the equation.
-0.01818181818 + 0.1909090909n + 0.01818181818 + n2 = 0 + 0.01818181818

Reorder the terms:
-0.01818181818 + 0.01818181818 + 0.1909090909n + n2 = 0 + 0.01818181818

Combine like terms: -0.01818181818 + 0.01818181818 = 0.00000000000
0.00000000000 + 0.1909090909n + n2 = 0 + 0.01818181818
0.1909090909n + n2 = 0 + 0.01818181818

Combine like terms: 0 + 0.01818181818 = 0.01818181818
0.1909090909n + n2 = 0.01818181818

The n term is 0.1909090909n.  Take half its coefficient (0.09545454545).
Square it (0.009111570247) and add it to both sides.

Add '0.009111570247' to each side of the equation.
0.1909090909n + 0.009111570247 + n2 = 0.01818181818 + 0.009111570247

Reorder the terms:
0.009111570247 + 0.1909090909n + n2 = 0.01818181818 + 0.009111570247

Combine like terms: 0.01818181818 + 0.009111570247 = 0.027293388427
0.009111570247 + 0.1909090909n + n2 = 0.027293388427

Factor a perfect square on the left side:
(n + 0.09545454545)(n + 0.09545454545) = 0.027293388427

Calculate the square root of the right side: 0.165207108

Break this problem into two subproblems by setting 
(n + 0.09545454545) equal to 0.165207108 and -0.165207108.

Subproblem 1

n + 0.09545454545 = 0.165207108 Simplifying n + 0.09545454545 = 0.165207108 Reorder the terms: 0.09545454545 + n = 0.165207108 Solving 0.09545454545 + n = 0.165207108 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.09545454545' to each side of the equation. 0.09545454545 + -0.09545454545 + n = 0.165207108 + -0.09545454545 Combine like terms: 0.09545454545 + -0.09545454545 = 0.00000000000 0.00000000000 + n = 0.165207108 + -0.09545454545 n = 0.165207108 + -0.09545454545 Combine like terms: 0.165207108 + -0.09545454545 = 0.06975256255 n = 0.06975256255 Simplifying n = 0.06975256255

Subproblem 2

n + 0.09545454545 = -0.165207108 Simplifying n + 0.09545454545 = -0.165207108 Reorder the terms: 0.09545454545 + n = -0.165207108 Solving 0.09545454545 + n = -0.165207108 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.09545454545' to each side of the equation. 0.09545454545 + -0.09545454545 + n = -0.165207108 + -0.09545454545 Combine like terms: 0.09545454545 + -0.09545454545 = 0.00000000000 0.00000000000 + n = -0.165207108 + -0.09545454545 n = -0.165207108 + -0.09545454545 Combine like terms: -0.165207108 + -0.09545454545 = -0.26066165345 n = -0.26066165345 Simplifying n = -0.26066165345

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.06975256255, -0.26066165345}

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