-4n^2-2n+1=

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Solution for -4n^2-2n+1= equation:


Simplifying
-4n2 + -2n + 1 = 0

Reorder the terms:
1 + -2n + -4n2 = 0

Solving
1 + -2n + -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'.
-0.25 + 0.5n + n2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 0.5n + 0.25 + n2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 0.5n + n2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.5n + n2 = 0 + 0.25
0.5n + n2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
0.5n + n2 = 0.25

The n term is 0.5n.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5n + 0.0625 + n2 = 0.25 + 0.0625

Reorder the terms:
0.0625 + 0.5n + n2 = 0.25 + 0.0625

Combine like terms: 0.25 + 0.0625 = 0.3125
0.0625 + 0.5n + n2 = 0.3125

Factor a perfect square on the left side:
(n + 0.25)(n + 0.25) = 0.3125

Calculate the square root of the right side: 0.559016994

Break this problem into two subproblems by setting 
(n + 0.25) equal to 0.559016994 and -0.559016994.

Subproblem 1

n + 0.25 = 0.559016994 Simplifying n + 0.25 = 0.559016994 Reorder the terms: 0.25 + n = 0.559016994 Solving 0.25 + n = 0.559016994 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + n = 0.559016994 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + n = 0.559016994 + -0.25 n = 0.559016994 + -0.25 Combine like terms: 0.559016994 + -0.25 = 0.309016994 n = 0.309016994 Simplifying n = 0.309016994

Subproblem 2

n + 0.25 = -0.559016994 Simplifying n + 0.25 = -0.559016994 Reorder the terms: 0.25 + n = -0.559016994 Solving 0.25 + n = -0.559016994 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + n = -0.559016994 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + n = -0.559016994 + -0.25 n = -0.559016994 + -0.25 Combine like terms: -0.559016994 + -0.25 = -0.809016994 n = -0.809016994 Simplifying n = -0.809016994

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.309016994, -0.809016994}

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