-x^2-16x+64=2

Simple and best practice solution for -x^2-16x+64=2 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^2-16x+64=2 equation:


Simplifying
-1x2 + -16x + 64 = 2

Reorder the terms:
64 + -16x + -1x2 = 2

Solving
64 + -16x + -1x2 = 2

Solving for variable 'x'.

Reorder the terms:
64 + -2 + -16x + -1x2 = 2 + -2

Combine like terms: 64 + -2 = 62
62 + -16x + -1x2 = 2 + -2

Combine like terms: 2 + -2 = 0
62 + -16x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-62 + 16x + x2 = 0

Move the constant term to the right:

Add '62' to each side of the equation.
-62 + 16x + 62 + x2 = 0 + 62

Reorder the terms:
-62 + 62 + 16x + x2 = 0 + 62

Combine like terms: -62 + 62 = 0
0 + 16x + x2 = 0 + 62
16x + x2 = 0 + 62

Combine like terms: 0 + 62 = 62
16x + x2 = 62

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 62 + 64

Reorder the terms:
64 + 16x + x2 = 62 + 64

Combine like terms: 62 + 64 = 126
64 + 16x + x2 = 126

Factor a perfect square on the left side:
(x + 8)(x + 8) = 126

Calculate the square root of the right side: 11.22497216

Break this problem into two subproblems by setting 
(x + 8) equal to 11.22497216 and -11.22497216.

Subproblem 1

x + 8 = 11.22497216 Simplifying x + 8 = 11.22497216 Reorder the terms: 8 + x = 11.22497216 Solving 8 + x = 11.22497216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 11.22497216 + -8 Combine like terms: 8 + -8 = 0 0 + x = 11.22497216 + -8 x = 11.22497216 + -8 Combine like terms: 11.22497216 + -8 = 3.22497216 x = 3.22497216 Simplifying x = 3.22497216

Subproblem 2

x + 8 = -11.22497216 Simplifying x + 8 = -11.22497216 Reorder the terms: 8 + x = -11.22497216 Solving 8 + x = -11.22497216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -11.22497216 + -8 Combine like terms: 8 + -8 = 0 0 + x = -11.22497216 + -8 x = -11.22497216 + -8 Combine like terms: -11.22497216 + -8 = -19.22497216 x = -19.22497216 Simplifying x = -19.22497216

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.22497216, -19.22497216}

See similar equations:

| 3+5x-4-7=2x-4x+1 | | 4x(7-3x-2x^2)5(3x^2-12x)= | | X^2-16x+47=0 | | 9=s/4 | | 12a-4(5b-2a)= | | -4x+5y=24 | | 15/100×20 | | -3(2t+10)=-12 | | -10h=5(2w-4) | | 4x/8=28 | | 10(s-8)=-155 | | -10h=5(2w-5) | | 6x-10=59 | | 7timesx=36.5 | | 5230+.55x=.5 | | -6+3c=2c+4 | | 25x^2-6x+1=-16x | | -9x+1y=-5 | | x^(-3/7)=1/4 | | (3-u)(3u-7)=0 | | 3(7-5p)= | | 180=120c | | 3-(-3x-4)-(5x-3x+4)=-(-x+7)-(6x-4) | | 4-5x^2=5+5x | | (x-7)(x+8)=3(x-16) | | x=-5p+325 | | p=i*i*r | | p^2-p-9=0 | | 0.83x+0.22=0.33 | | 41-4lnx=0 | | 0=3p^2+5p-1 | | 6(4r-0)=-36 |

Equations solver categories