x^2-x=222

Simple and best practice solution for x^2-x=222 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-x=222 equation:


Simplifying
x2 + -1x = 222

Reorder the terms:
-1x + x2 = 222

Solving
-1x + x2 = 222

Solving for variable 'x'.

Reorder the terms:
-222 + -1x + x2 = 222 + -222

Combine like terms: 222 + -222 = 0
-222 + -1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '222' to each side of the equation.
-222 + -1x + 222 + x2 = 0 + 222

Reorder the terms:
-222 + 222 + -1x + x2 = 0 + 222

Combine like terms: -222 + 222 = 0
0 + -1x + x2 = 0 + 222
-1x + x2 = 0 + 222

Combine like terms: 0 + 222 = 222
-1x + x2 = 222

The x term is -1x.  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.
-1x + 0.25 + x2 = 222 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 222 + 0.25

Combine like terms: 222 + 0.25 = 222.25
0.25 + -1x + x2 = 222.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 222.25

Calculate the square root of the right side: 14.908051516

Break this problem into two subproblems by setting 
(x + -0.5) equal to 14.908051516 and -14.908051516.

Subproblem 1

x + -0.5 = 14.908051516 Simplifying x + -0.5 = 14.908051516 Reorder the terms: -0.5 + x = 14.908051516 Solving -0.5 + x = 14.908051516 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 14.908051516 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 14.908051516 + 0.5 x = 14.908051516 + 0.5 Combine like terms: 14.908051516 + 0.5 = 15.408051516 x = 15.408051516 Simplifying x = 15.408051516

Subproblem 2

x + -0.5 = -14.908051516 Simplifying x + -0.5 = -14.908051516 Reorder the terms: -0.5 + x = -14.908051516 Solving -0.5 + x = -14.908051516 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -14.908051516 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -14.908051516 + 0.5 x = -14.908051516 + 0.5 Combine like terms: -14.908051516 + 0.5 = -14.408051516 x = -14.408051516 Simplifying x = -14.408051516

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.408051516, -14.408051516}

See similar equations:

| s/27+96=101 | | -17y-32y= | | 8(9x-9)=29 | | 20-y=10 | | 108-5q=73 | | 4n^2+19n-18=0 | | 100=5x+5x-10 | | 6x+90=180 | | 16x-4=36x+11 | | 8+13x=7.5+16x | | c/7+46=54 | | 8d-3d+d+8=4d | | 36+2=4x+2 | | 57=d/8+48 | | 3x^5-60x^3+192x=0 | | g/10-1=1 | | 1=c/10-1 | | -4y+5=3(2y+1) | | 8x+13=7.5x+16 | | 3=c/5-3 | | 8x^4y+4x^3y-12x^2y=0 | | 5x-12=2(3x-4) | | v/9--33=37 | | 2x+2=4x+6 | | q/6--58=63 | | -7x+18=-4x-3 | | z^7-4z^6+6z^5-6z^4+6z^3-12z^2+8z+4=0 | | y+14=3y-22 | | 7*4x=-14 | | X^2+0x-36= | | 16=2u+2 | | (3x-2)*4=24x+6/2-11 |

Equations solver categories