x^2-19x+2=0

Simple and best practice solution for x^2-19x+2=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 x^2-19x+2=0 equation:


Simplifying
x2 + -19x + 2 = 0

Reorder the terms:
2 + -19x + x2 = 0

Solving
2 + -19x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -19x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -19x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -19x + x2 = 0 + -2
-19x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-19x + x2 = -2

The x term is -19x.  Take half its coefficient (-9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
-19x + 90.25 + x2 = -2 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -2 + 90.25

Combine like terms: -2 + 90.25 = 88.25
90.25 + -19x + x2 = 88.25

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 88.25

Calculate the square root of the right side: 9.394147114

Break this problem into two subproblems by setting 
(x + -9.5) equal to 9.394147114 and -9.394147114.

Subproblem 1

x + -9.5 = 9.394147114 Simplifying x + -9.5 = 9.394147114 Reorder the terms: -9.5 + x = 9.394147114 Solving -9.5 + x = 9.394147114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = 9.394147114 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 9.394147114 + 9.5 x = 9.394147114 + 9.5 Combine like terms: 9.394147114 + 9.5 = 18.894147114 x = 18.894147114 Simplifying x = 18.894147114

Subproblem 2

x + -9.5 = -9.394147114 Simplifying x + -9.5 = -9.394147114 Reorder the terms: -9.5 + x = -9.394147114 Solving -9.5 + x = -9.394147114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = -9.394147114 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -9.394147114 + 9.5 x = -9.394147114 + 9.5 Combine like terms: -9.394147114 + 9.5 = 0.105852886 x = 0.105852886 Simplifying x = 0.105852886

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.894147114, 0.105852886}

See similar equations:

| 3x^4+4x-3=0 | | 6p^2+10=19p | | 19-(2m+7)=4+2m-12 | | 8b^2-10b=2b | | 24+3v=-7(6v+3) | | (x-1)(x-2)-3(x-1)=0 | | f(x+1)=4x-7 | | x(5x+2)=2x^2-2x+15 | | 3x^4+14x-3=0 | | X=-2(-3) | | 3(2-y)+4y=7 | | 4x+4-9x=3+2x | | 3x+5=5x-21 | | 2(x^2)=2704-110x+4(x^2)-110x | | 7w-9=4w+12 | | (7x-5)(-8x-3)=0 | | -13+n=-4-2n | | x+72+63+81+102=5(7) | | -2+x-2x=1 | | q+8=12 | | x+72+63+81+102=7(7) | | -6(9-w)=2(3w-7) | | 5x-13=5x-13 | | 4x+4(5x-5)=172 | | 2x+9=7x+11 | | 4(x+5)=3(1x-2)-2(1x+2) | | 4x^2+97x+520=0 | | 8(x-2)+3=3 | | 4x-(2x-8)=5(x-2)+3 | | 1+1+1+1+1+1+1+1+1+1+1+1=32 | | 6.25/g=2.5 | | 5m+6r=8 |

Equations solver categories