8x(x+8)=x+36

Simple and best practice solution for 8x(x+8)=x+36 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 8x(x+8)=x+36 equation:


Simplifying
8x(x + 8) = x + 36

Reorder the terms:
8x(8 + x) = x + 36
(8 * 8x + x * 8x) = x + 36
(64x + 8x2) = x + 36

Reorder the terms:
64x + 8x2 = 36 + x

Solving
64x + 8x2 = 36 + x

Solving for variable 'x'.

Reorder the terms:
-36 + 64x + -1x + 8x2 = 36 + x + -36 + -1x

Combine like terms: 64x + -1x = 63x
-36 + 63x + 8x2 = 36 + x + -36 + -1x

Reorder the terms:
-36 + 63x + 8x2 = 36 + -36 + x + -1x

Combine like terms: 36 + -36 = 0
-36 + 63x + 8x2 = 0 + x + -1x
-36 + 63x + 8x2 = x + -1x

Combine like terms: x + -1x = 0
-36 + 63x + 8x2 = 0

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

Divide each side by '8'.
-4.5 + 7.875x + x2 = 0

Move the constant term to the right:

Add '4.5' to each side of the equation.
-4.5 + 7.875x + 4.5 + x2 = 0 + 4.5

Reorder the terms:
-4.5 + 4.5 + 7.875x + x2 = 0 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + 7.875x + x2 = 0 + 4.5
7.875x + x2 = 0 + 4.5

Combine like terms: 0 + 4.5 = 4.5
7.875x + x2 = 4.5

The x term is 7.875x.  Take half its coefficient (3.9375).
Square it (15.50390625) and add it to both sides.

Add '15.50390625' to each side of the equation.
7.875x + 15.50390625 + x2 = 4.5 + 15.50390625

Reorder the terms:
15.50390625 + 7.875x + x2 = 4.5 + 15.50390625

Combine like terms: 4.5 + 15.50390625 = 20.00390625
15.50390625 + 7.875x + x2 = 20.00390625

Factor a perfect square on the left side:
(x + 3.9375)(x + 3.9375) = 20.00390625

Calculate the square root of the right side: 4.472572666

Break this problem into two subproblems by setting 
(x + 3.9375) equal to 4.472572666 and -4.472572666.

Subproblem 1

x + 3.9375 = 4.472572666 Simplifying x + 3.9375 = 4.472572666 Reorder the terms: 3.9375 + x = 4.472572666 Solving 3.9375 + x = 4.472572666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.9375' to each side of the equation. 3.9375 + -3.9375 + x = 4.472572666 + -3.9375 Combine like terms: 3.9375 + -3.9375 = 0.0000 0.0000 + x = 4.472572666 + -3.9375 x = 4.472572666 + -3.9375 Combine like terms: 4.472572666 + -3.9375 = 0.535072666 x = 0.535072666 Simplifying x = 0.535072666

Subproblem 2

x + 3.9375 = -4.472572666 Simplifying x + 3.9375 = -4.472572666 Reorder the terms: 3.9375 + x = -4.472572666 Solving 3.9375 + x = -4.472572666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.9375' to each side of the equation. 3.9375 + -3.9375 + x = -4.472572666 + -3.9375 Combine like terms: 3.9375 + -3.9375 = 0.0000 0.0000 + x = -4.472572666 + -3.9375 x = -4.472572666 + -3.9375 Combine like terms: -4.472572666 + -3.9375 = -8.410072666 x = -8.410072666 Simplifying x = -8.410072666

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.535072666, -8.410072666}

See similar equations:

| 2a-5=5a+4 | | 12x-16=17x+4 | | 5d+3.3=7.2 | | 2(11-k)+14=k | | x^1*x^9= | | 3x/2+6=9 | | -10(5v-2)=-12(v-8) | | 4x+12=3x-3+x | | .6*33=22x | | 3a=2a-4 | | 9x^3+5x-9x^2+8=3x^2 | | 5d+3.3=7.3 | | 4(8-6x)=184 | | y+3+3y=19 | | x=-14 | | 201-2x=34x+17 | | 7x(5x+10)=7x(5x+10) | | K=(11-K)+14 | | 4v-9=2v | | 3(d+12)=-4d | | 8q+12=(3+2q) | | 11y-7y=8 | | 1/2+3/4= | | 8y+4=2y-26 | | -9(12-8k)-5(7-11k)=-5k-11k | | 7.9=4x | | 2(8x-5)+2x+5=13 | | 3x-1/4=5 | | 6+.05x=1000 | | -4(2x-4)=10(4x-2)-12x | | X^2-4x+3=5 | | 650m=112m-24 |

Equations solver categories