x^2-160*x+800=0

Simple and best practice solution for x^2-160*x+800=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^2-160*x+800=0 equation:


Simplifying
x2 + -160x + 800 = 0

Reorder the terms:
800 + -160x + x2 = 0

Solving
800 + -160x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-800' to each side of the equation.
800 + -160x + -800 + x2 = 0 + -800

Reorder the terms:
800 + -800 + -160x + x2 = 0 + -800

Combine like terms: 800 + -800 = 0
0 + -160x + x2 = 0 + -800
-160x + x2 = 0 + -800

Combine like terms: 0 + -800 = -800
-160x + x2 = -800

The x term is -160x.  Take half its coefficient (-80).
Square it (6400) and add it to both sides.

Add '6400' to each side of the equation.
-160x + 6400 + x2 = -800 + 6400

Reorder the terms:
6400 + -160x + x2 = -800 + 6400

Combine like terms: -800 + 6400 = 5600
6400 + -160x + x2 = 5600

Factor a perfect square on the left side:
(x + -80)(x + -80) = 5600

Calculate the square root of the right side: 74.833147735

Break this problem into two subproblems by setting 
(x + -80) equal to 74.833147735 and -74.833147735.

Subproblem 1

x + -80 = 74.833147735 Simplifying x + -80 = 74.833147735 Reorder the terms: -80 + x = 74.833147735 Solving -80 + x = 74.833147735 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + x = 74.833147735 + 80 Combine like terms: -80 + 80 = 0 0 + x = 74.833147735 + 80 x = 74.833147735 + 80 Combine like terms: 74.833147735 + 80 = 154.833147735 x = 154.833147735 Simplifying x = 154.833147735

Subproblem 2

x + -80 = -74.833147735 Simplifying x + -80 = -74.833147735 Reorder the terms: -80 + x = -74.833147735 Solving -80 + x = -74.833147735 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + x = -74.833147735 + 80 Combine like terms: -80 + 80 = 0 0 + x = -74.833147735 + 80 x = -74.833147735 + 80 Combine like terms: -74.833147735 + 80 = 5.166852265 x = 5.166852265 Simplifying x = 5.166852265

Solution

The solution to the problem is based on the solutions from the subproblems. x = {154.833147735, 5.166852265}

See similar equations:

| 0.1(x+10)-0.07(x-20)=0.6 | | 5x(5x)-8=17 | | -17p=136 | | 4x=-22+2x | | 30=-5a-5 | | -16p=128 | | 25x+42=10x-8 | | h/4.4=14.08 | | s-49=11 | | 2p+8.7=24.1 | | X=3y+10 | | 15-2a=-9 | | 5y+9.4=53.9 | | 9x^2-72x-144=0 | | -4x-8=8+4x | | 9x-2=58-3x | | 5z-5.6=2.5z+13.4 | | 4-3a=31 | | -0.3333y-6=-11 | | 2x(8x+4)=0 | | -8a-(8a-4)=-2(4+5a) | | 5z-7.4=3.6z+1.14 | | 3a-9(11a+3)=-9a+12(a+6) | | 5x+18.2=30.6-3x | | 3(k+8)-4(k+4)=4k-7k | | 13=4a-11 | | -6(x-2)+4(3-6x)=-36x | | (5)=3x+7 | | 26x+32=16x-8 | | -13=1.8c+32 | | 81+14r=-r | | 3a-9(11a+3)=9a+12(a+6) |

Equations solver categories