x^2-4x+1=

Simple and best practice solution for x^2-4x+1= 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 x^2-4x+1= equation:


Simplifying
x2 + -4x + 1 = 0

Reorder the terms:
1 + -4x + x2 = 0

Solving
1 + -4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -4x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -4x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -4x + x2 = 0 + -1
-4x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-4x + x2 = -1

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -1 + 4

Reorder the terms:
4 + -4x + x2 = -1 + 4

Combine like terms: -1 + 4 = 3
4 + -4x + x2 = 3

Factor a perfect square on the left side:
(x + -2)(x + -2) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(x + -2) equal to 1.732050808 and -1.732050808.

Subproblem 1

x + -2 = 1.732050808 Simplifying x + -2 = 1.732050808 Reorder the terms: -2 + x = 1.732050808 Solving -2 + x = 1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1.732050808 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.732050808 + 2 x = 1.732050808 + 2 Combine like terms: 1.732050808 + 2 = 3.732050808 x = 3.732050808 Simplifying x = 3.732050808

Subproblem 2

x + -2 = -1.732050808 Simplifying x + -2 = -1.732050808 Reorder the terms: -2 + x = -1.732050808 Solving -2 + x = -1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1.732050808 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.732050808 + 2 x = -1.732050808 + 2 Combine like terms: -1.732050808 + 2 = 0.267949192 x = 0.267949192 Simplifying x = 0.267949192

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.732050808, 0.267949192}

See similar equations:

| -3a^3+7a^2+4a+2+-a^3+a^2-9a+1= | | (2a+8b)= | | (-3x^2-1)*(-x+9)= | | u^4+8u^2+15=0 | | (x-2)-(3-x)=1 | | -3x+5-5=29-5 | | (2y^5+3y^4+y+1)+(8y^5-3y^4+4y-7)= | | 42b^2-60b-48=0 | | 28n^2-8n=0 | | 4-x=16-2x | | 4p-6+6=2p+10 | | 3b^3-7b^2=0 | | 4sin(2x)=3+cos(x) | | x^2-6+1=0 | | 8(x-1)-17(x-3)=4(4x-9)+4 | | -4x+2=8x+1 | | X+.05x=71000000 | | (5x+3)(-x+4)= | | 10a^2+84a+98=0 | | 7x-2=-14 | | -27+4g=33 | | 15x^2+123x-108=0 | | 18m=6m | | 2x^3-17x=0 | | 3-2x=x^2+3x-3 | | 4x+5=2x-8 | | 5k^3-26k^2+24k=0 | | 2x^3-17=0 | | x+(x-1)=55 | | 74=4+2b | | ln(3x+6)=7 | | 3(4x-1)=6 |

Equations solver categories