x^2+8x+8x+64=185

Simple and best practice solution for x^2+8x+8x+64=185 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+8x+8x+64=185 equation:


Simplifying
x2 + 8x + 8x + 64 = 185

Reorder the terms:
64 + 8x + 8x + x2 = 185

Combine like terms: 8x + 8x = 16x
64 + 16x + x2 = 185

Solving
64 + 16x + x2 = 185

Solving for variable 'x'.

Reorder the terms:
64 + -185 + 16x + x2 = 185 + -185

Combine like terms: 64 + -185 = -121
-121 + 16x + x2 = 185 + -185

Combine like terms: 185 + -185 = 0
-121 + 16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '121' to each side of the equation.
-121 + 16x + 121 + x2 = 0 + 121

Reorder the terms:
-121 + 121 + 16x + x2 = 0 + 121

Combine like terms: -121 + 121 = 0
0 + 16x + x2 = 0 + 121
16x + x2 = 0 + 121

Combine like terms: 0 + 121 = 121
16x + x2 = 121

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 = 121 + 64

Reorder the terms:
64 + 16x + x2 = 121 + 64

Combine like terms: 121 + 64 = 185
64 + 16x + x2 = 185

Factor a perfect square on the left side:
(x + 8)(x + 8) = 185

Calculate the square root of the right side: 13.601470509

Break this problem into two subproblems by setting 
(x + 8) equal to 13.601470509 and -13.601470509.

Subproblem 1

x + 8 = 13.601470509 Simplifying x + 8 = 13.601470509 Reorder the terms: 8 + x = 13.601470509 Solving 8 + x = 13.601470509 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 = 13.601470509 + -8 Combine like terms: 8 + -8 = 0 0 + x = 13.601470509 + -8 x = 13.601470509 + -8 Combine like terms: 13.601470509 + -8 = 5.601470509 x = 5.601470509 Simplifying x = 5.601470509

Subproblem 2

x + 8 = -13.601470509 Simplifying x + 8 = -13.601470509 Reorder the terms: 8 + x = -13.601470509 Solving 8 + x = -13.601470509 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 = -13.601470509 + -8 Combine like terms: 8 + -8 = 0 0 + x = -13.601470509 + -8 x = -13.601470509 + -8 Combine like terms: -13.601470509 + -8 = -21.601470509 x = -21.601470509 Simplifying x = -21.601470509

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.601470509, -21.601470509}

See similar equations:

| 3x+4y+7z=16 | | -1/2(5x+2)=-8.5 | | -2t(4t-5)+(-5t^2)= | | 15+0.50p=825+0.25p | | 18=-36-94 | | -15+11m=260 | | 3(n+5)=27n | | 2x+14+8=x+16 | | -5x+10-2x=-4 | | 300*.08=a | | -15+11m=160 | | 21+12x+11-3x=-40 | | 7+2x+15=x+16 | | 32=12-4(x-1) | | 3.14=7x-26 | | 2t(4t-5)+(-5t^2)= | | 0.80*300= | | (5r)/2-6=19 | | 3p-8+p=2(2p+4) | | 2x-4+7=x+8 | | 77/10-39/10 | | 23.89/(-3.48) | | 1/2=5/x | | 6-2x+5x=9x+8 | | 7x-1+1=8x-1 | | (X+3)+(x+3)+(2xm)+2xm=24 | | 4x+16=2(2x+8) | | 3x^2+13x+16=0 | | 6(2x-3)-4x=12 | | (3x-1)/9+x=3x+1/3+4 | | 23.89/-3.48 | | f(x)=17x+3 |

Equations solver categories