x^2-12x+36=13

Simple and best practice solution for x^2-12x+36=13 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^2-12x+36=13 equation:


Simplifying
x2 + -12x + 36 = 13

Reorder the terms:
36 + -12x + x2 = 13

Solving
36 + -12x + x2 = 13

Solving for variable 'x'.

Reorder the terms:
36 + -13 + -12x + x2 = 13 + -13

Combine like terms: 36 + -13 = 23
23 + -12x + x2 = 13 + -13

Combine like terms: 13 + -13 = 0
23 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + -12x + -23 + x2 = 0 + -23

Reorder the terms:
23 + -23 + -12x + x2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -12x + x2 = 0 + -23
-12x + x2 = 0 + -23

Combine like terms: 0 + -23 = -23
-12x + x2 = -23

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = -23 + 36

Reorder the terms:
36 + -12x + x2 = -23 + 36

Combine like terms: -23 + 36 = 13
36 + -12x + x2 = 13

Factor a perfect square on the left side:
(x + -6)(x + -6) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(x + -6) equal to 3.605551275 and -3.605551275.

Subproblem 1

x + -6 = 3.605551275 Simplifying x + -6 = 3.605551275 Reorder the terms: -6 + x = 3.605551275 Solving -6 + x = 3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 3.605551275 + 6 Combine like terms: -6 + 6 = 0 0 + x = 3.605551275 + 6 x = 3.605551275 + 6 Combine like terms: 3.605551275 + 6 = 9.605551275 x = 9.605551275 Simplifying x = 9.605551275

Subproblem 2

x + -6 = -3.605551275 Simplifying x + -6 = -3.605551275 Reorder the terms: -6 + x = -3.605551275 Solving -6 + x = -3.605551275 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -3.605551275 + 6 Combine like terms: -6 + 6 = 0 0 + x = -3.605551275 + 6 x = -3.605551275 + 6 Combine like terms: -3.605551275 + 6 = 2.394448725 x = 2.394448725 Simplifying x = 2.394448725

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.605551275, 2.394448725}

See similar equations:

| 48-a=4-a+7 | | 2x-14+6x-9+3x+2=180 | | 6x^5-5=43 | | −2/3-7/8w=9/4 | | 2(3x+5)=8x-8 | | 180-55=x | | 57+x+68=180 | | 5r-6=31 | | X^2+ax+100=0 | | 90-34=x | | 4r-6=31 | | -1/6=-8/21y | | 68+48+x=180 | | 8y=6x+60 | | 68+48=180 | | 1-6x+3=16-8x | | 54+3y=x | | (a-0.3)(a-0.5)= | | -6m+18=3m-12m | | 2+4x^2=1 | | (3v-1)(5+v)=0 | | 3x^2+34x=440 | | 4a-7=a-5 | | 21x-15x-7=5 | | (7x/8)-(x-2)=12 | | -36+324= | | (1-6x+2u)(-3)= | | 0.15*0.23= | | 7x+8+5x+2+7x-1=180 | | -11x+x^2=-2+30 | | 8.2=2x-4 | | -5(-5x-v+6)= |

Equations solver categories