7n^2-17n+3=

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Solution for 7n^2-17n+3= equation:


Simplifying
7n2 + -17n + 3 = 0

Reorder the terms:
3 + -17n + 7n2 = 0

Solving
3 + -17n + 7n2 = 0

Solving for variable 'n'.

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

Divide each side by '7'.
0.4285714286 + -2.428571429n + n2 = 0

Move the constant term to the right:

Add '-0.4285714286' to each side of the equation.
0.4285714286 + -2.428571429n + -0.4285714286 + n2 = 0 + -0.4285714286

Reorder the terms:
0.4285714286 + -0.4285714286 + -2.428571429n + n2 = 0 + -0.4285714286

Combine like terms: 0.4285714286 + -0.4285714286 = 0.0000000000
0.0000000000 + -2.428571429n + n2 = 0 + -0.4285714286
-2.428571429n + n2 = 0 + -0.4285714286

Combine like terms: 0 + -0.4285714286 = -0.4285714286
-2.428571429n + n2 = -0.4285714286

The n term is -2.428571429n.  Take half its coefficient (-1.214285715).
Square it (1.474489798) and add it to both sides.

Add '1.474489798' to each side of the equation.
-2.428571429n + 1.474489798 + n2 = -0.4285714286 + 1.474489798

Reorder the terms:
1.474489798 + -2.428571429n + n2 = -0.4285714286 + 1.474489798

Combine like terms: -0.4285714286 + 1.474489798 = 1.0459183694
1.474489798 + -2.428571429n + n2 = 1.0459183694

Factor a perfect square on the left side:
(n + -1.214285715)(n + -1.214285715) = 1.0459183694

Calculate the square root of the right side: 1.022701506

Break this problem into two subproblems by setting 
(n + -1.214285715) equal to 1.022701506 and -1.022701506.

Subproblem 1

n + -1.214285715 = 1.022701506 Simplifying n + -1.214285715 = 1.022701506 Reorder the terms: -1.214285715 + n = 1.022701506 Solving -1.214285715 + n = 1.022701506 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.214285715' to each side of the equation. -1.214285715 + 1.214285715 + n = 1.022701506 + 1.214285715 Combine like terms: -1.214285715 + 1.214285715 = 0.000000000 0.000000000 + n = 1.022701506 + 1.214285715 n = 1.022701506 + 1.214285715 Combine like terms: 1.022701506 + 1.214285715 = 2.236987221 n = 2.236987221 Simplifying n = 2.236987221

Subproblem 2

n + -1.214285715 = -1.022701506 Simplifying n + -1.214285715 = -1.022701506 Reorder the terms: -1.214285715 + n = -1.022701506 Solving -1.214285715 + n = -1.022701506 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.214285715' to each side of the equation. -1.214285715 + 1.214285715 + n = -1.022701506 + 1.214285715 Combine like terms: -1.214285715 + 1.214285715 = 0.000000000 0.000000000 + n = -1.022701506 + 1.214285715 n = -1.022701506 + 1.214285715 Combine like terms: -1.022701506 + 1.214285715 = 0.191584209 n = 0.191584209 Simplifying n = 0.191584209

Solution

The solution to the problem is based on the solutions from the subproblems. n = {2.236987221, 0.191584209}

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