4n^2-4n-4=0

Simple and best practice solution for 4n^2-4n-4=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4n^2-4n-4=0 equation:


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

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

Solving
-4 + -4n + 4n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -1n + n2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1 + -1n + n2)' equal to zero and attempt to solve: Simplifying -1 + -1n + n2 = 0 Solving -1 + -1n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + -1n + 1 + n2 = 0 + 1 Reorder the terms: -1 + 1 + -1n + n2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1n + n2 = 0 + 1 -1n + n2 = 0 + 1 Combine like terms: 0 + 1 = 1 -1n + n2 = 1 The n term is -1n. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1n + 0.25 + n2 = 1 + 0.25 Reorder the terms: 0.25 + -1n + n2 = 1 + 0.25 Combine like terms: 1 + 0.25 = 1.25 0.25 + -1n + n2 = 1.25 Factor a perfect square on the left side: (n + -0.5)(n + -0.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (n + -0.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

n + -0.5 = 1.118033989 Simplifying n + -0.5 = 1.118033989 Reorder the terms: -0.5 + n = 1.118033989 Solving -0.5 + n = 1.118033989 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = 1.118033989 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = 1.118033989 + 0.5 n = 1.118033989 + 0.5 Combine like terms: 1.118033989 + 0.5 = 1.618033989 n = 1.618033989 Simplifying n = 1.618033989

Subproblem 2

n + -0.5 = -1.118033989 Simplifying n + -0.5 = -1.118033989 Reorder the terms: -0.5 + n = -1.118033989 Solving -0.5 + n = -1.118033989 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = -1.118033989 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = -1.118033989 + 0.5 n = -1.118033989 + 0.5 Combine like terms: -1.118033989 + 0.5 = -0.618033989 n = -0.618033989 Simplifying n = -0.618033989

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.618033989, -0.618033989}

Solution

n = {1.618033989, -0.618033989}

See similar equations:

| 10e^4x+1=10 | | 10e^4x+1=10 | | 9=7z-13z-22 | | b+(-24)=11 | | z-(-21)=11 | | -10+x+4-5=7x-4 | | n-3+2n=12 | | 3m+18=21 | | 5-3645x^2=0 | | 3(2x+3)-45=0 | | 4x-45y+9=0 | | 6x+6x=-12+3x+6x | | x+5=6x-16 | | 12x^3-12x^2+6=0 | | 2x+11=2x+6 | | 5t+36=-6-12t | | 7x-5=61+x | | 4b^2=168 | | x-y=x^2-3xy+4x+5y | | 2x+6=-8x-24 | | 13=5p+5+3p | | (x+3)2=6x-16 | | D^2+2D-1=0 | | (X+6)(x-7)(X+2)(x-3)+180=0 | | 6x-5=x+7 | | 4M+8=8 | | 3w-2+4w=5(w+3)-7 | | -y+4=7 | | c+2c-5-5c=7-6c+9 | | 38a-28-1=14-8a | | ax+z=aw-9 | | 8a+4b+3c=342 |

Equations solver categories