x^2-25x+121=0

Simple and best practice solution for x^2-25x+121=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^2-25x+121=0 equation:


Simplifying
x2 + -25x + 121 = 0

Reorder the terms:
121 + -25x + x2 = 0

Solving
121 + -25x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-121' to each side of the equation.
121 + -25x + -121 + x2 = 0 + -121

Reorder the terms:
121 + -121 + -25x + x2 = 0 + -121

Combine like terms: 121 + -121 = 0
0 + -25x + x2 = 0 + -121
-25x + x2 = 0 + -121

Combine like terms: 0 + -121 = -121
-25x + x2 = -121

The x term is -25x.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25x + 156.25 + x2 = -121 + 156.25

Reorder the terms:
156.25 + -25x + x2 = -121 + 156.25

Combine like terms: -121 + 156.25 = 35.25
156.25 + -25x + x2 = 35.25

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 35.25

Calculate the square root of the right side: 5.937171044

Break this problem into two subproblems by setting 
(x + -12.5) equal to 5.937171044 and -5.937171044.

Subproblem 1

x + -12.5 = 5.937171044 Simplifying x + -12.5 = 5.937171044 Reorder the terms: -12.5 + x = 5.937171044 Solving -12.5 + x = 5.937171044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = 5.937171044 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 5.937171044 + 12.5 x = 5.937171044 + 12.5 Combine like terms: 5.937171044 + 12.5 = 18.437171044 x = 18.437171044 Simplifying x = 18.437171044

Subproblem 2

x + -12.5 = -5.937171044 Simplifying x + -12.5 = -5.937171044 Reorder the terms: -12.5 + x = -5.937171044 Solving -12.5 + x = -5.937171044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = -5.937171044 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -5.937171044 + 12.5 x = -5.937171044 + 12.5 Combine like terms: -5.937171044 + 12.5 = 6.562828956 x = 6.562828956 Simplifying x = 6.562828956

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.437171044, 6.562828956}

See similar equations:

| 1255/15 | | 125/15 | | (3k+5)(k-9)=15(k+3) | | 3a+6=6a-6 | | 7*0.3+X*0.7=4 | | X-(6-x)=2 | | 11y-2=6y+43 | | 15x+30y=1575 | | 1.5=0.03x-58.59 | | ((x+7)*3)*((x+7)*3)=5184 | | 11(3+8)=2 | | g(x)=0.5x-9 | | 3x+9=9(x+1)-6x | | x^2+4x+9=1 | | 56x+12=145 | | W/2-10h | | W/2-10h=53 | | 6u^5v^8*2u*3v^7= | | 1234=1 | | 9x-30=160 | | 5q-29=6q-48 | | 14/2117/24 | | 8x/z^-4 | | 29/3520/30 | | 7=2.5ln(x)+3 | | G/2-7 | | 18/3216/32 | | (7/8)(?)=21 | | 20/1528/23 | | -5y-4=8y+100 | | x+31=10x-68 | | 0=.4x+5 |

Equations solver categories