10n^2+29n-10=0

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Solution for 10n^2+29n-10=0 equation:


Simplifying
10n2 + 29n + -10 = 0

Reorder the terms:
-10 + 29n + 10n2 = 0

Solving
-10 + 29n + 10n2 = 0

Solving for variable 'n'.

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

Divide each side by '10'.
-1 + 2.9n + n2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 2.9n + 1 + n2 = 0 + 1

Reorder the terms:
-1 + 1 + 2.9n + n2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2.9n + n2 = 0 + 1
2.9n + n2 = 0 + 1

Combine like terms: 0 + 1 = 1
2.9n + n2 = 1

The n term is 2.9n.  Take half its coefficient (1.45).
Square it (2.1025) and add it to both sides.

Add '2.1025' to each side of the equation.
2.9n + 2.1025 + n2 = 1 + 2.1025

Reorder the terms:
2.1025 + 2.9n + n2 = 1 + 2.1025

Combine like terms: 1 + 2.1025 = 3.1025
2.1025 + 2.9n + n2 = 3.1025

Factor a perfect square on the left side:
(n + 1.45)(n + 1.45) = 3.1025

Calculate the square root of the right side: 1.761391495

Break this problem into two subproblems by setting 
(n + 1.45) equal to 1.761391495 and -1.761391495.

Subproblem 1

n + 1.45 = 1.761391495 Simplifying n + 1.45 = 1.761391495 Reorder the terms: 1.45 + n = 1.761391495 Solving 1.45 + n = 1.761391495 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + n = 1.761391495 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + n = 1.761391495 + -1.45 n = 1.761391495 + -1.45 Combine like terms: 1.761391495 + -1.45 = 0.311391495 n = 0.311391495 Simplifying n = 0.311391495

Subproblem 2

n + 1.45 = -1.761391495 Simplifying n + 1.45 = -1.761391495 Reorder the terms: 1.45 + n = -1.761391495 Solving 1.45 + n = -1.761391495 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + n = -1.761391495 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + n = -1.761391495 + -1.45 n = -1.761391495 + -1.45 Combine like terms: -1.761391495 + -1.45 = -3.211391495 n = -3.211391495 Simplifying n = -3.211391495

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.311391495, -3.211391495}

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