5x^2-20x+1=

Simple and best practice solution for 5x^2-20x+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 5x^2-20x+1= equation:


Simplifying
5x2 + -20x + 1 = 0

Reorder the terms:
1 + -20x + 5x2 = 0

Solving
1 + -20x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
0.2 + -4x + x2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + -4x + -0.2 + x2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + -4x + x2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -4x + x2 = 0 + -0.2
-4x + x2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
-4x + x2 = -0.2

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 = -0.2 + 4

Reorder the terms:
4 + -4x + x2 = -0.2 + 4

Combine like terms: -0.2 + 4 = 3.8
4 + -4x + x2 = 3.8

Factor a perfect square on the left side:
(x + -2)(x + -2) = 3.8

Calculate the square root of the right side: 1.949358869

Break this problem into two subproblems by setting 
(x + -2) equal to 1.949358869 and -1.949358869.

Subproblem 1

x + -2 = 1.949358869 Simplifying x + -2 = 1.949358869 Reorder the terms: -2 + x = 1.949358869 Solving -2 + x = 1.949358869 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 = 1.949358869 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.949358869 + 2 x = 1.949358869 + 2 Combine like terms: 1.949358869 + 2 = 3.949358869 x = 3.949358869 Simplifying x = 3.949358869

Subproblem 2

x + -2 = -1.949358869 Simplifying x + -2 = -1.949358869 Reorder the terms: -2 + x = -1.949358869 Solving -2 + x = -1.949358869 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 = -1.949358869 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.949358869 + 2 x = -1.949358869 + 2 Combine like terms: -1.949358869 + 2 = 0.050641131 x = 0.050641131 Simplifying x = 0.050641131

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.949358869, 0.050641131}

See similar equations:

| 5y-1.5=8.5 | | m^2+8m+16=0 | | -3x-3x-4=8 | | 4s-15=5 | | -5w-2=13 | | 4+3(2x+1)=x-8 | | 49x^2+56x+16=0 | | 2(m+1)=4(m+2) | | 8x+8+9x=17x+8 | | 5r-3=4r | | 9z-34=4z-9 | | -15x^2+12x+28=0 | | -10h+2+4h-6=-16 | | 20x^2y-45y= | | -7x^2+12x+28=0 | | 2.6-4r=-2.2 | | Q+7=29+5 | | 9y-8=-8 | | 3w-4w+5=-4 | | 9y-2=5y+8 | | 9x^3+x^2-36x-4=0 | | (2x-1)(2x+1)= | | 5y^3-39y^2-8y=0 | | 3w^2=24w | | 3x-y=14 | | -63=7g-8 | | 3x=9y | | 1(x-1)=-2 | | 3x=x-18 | | 12x^2-52x-40=0 | | 5(2x+3)=24 | | 3x+11=-10 |

Equations solver categories