x^2-8x-28=18x-180

Simple and best practice solution for x^2-8x-28=18x-180 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-28=18x-180 equation:


Simplifying
x2 + -8x + -28 = 18x + -180

Reorder the terms:
-28 + -8x + x2 = 18x + -180

Reorder the terms:
-28 + -8x + x2 = -180 + 18x

Solving
-28 + -8x + x2 = -180 + 18x

Solving for variable 'x'.

Reorder the terms:
-28 + 180 + -8x + -18x + x2 = -180 + 18x + 180 + -18x

Combine like terms: -28 + 180 = 152
152 + -8x + -18x + x2 = -180 + 18x + 180 + -18x

Combine like terms: -8x + -18x = -26x
152 + -26x + x2 = -180 + 18x + 180 + -18x

Reorder the terms:
152 + -26x + x2 = -180 + 180 + 18x + -18x

Combine like terms: -180 + 180 = 0
152 + -26x + x2 = 0 + 18x + -18x
152 + -26x + x2 = 18x + -18x

Combine like terms: 18x + -18x = 0
152 + -26x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-152' to each side of the equation.
152 + -26x + -152 + x2 = 0 + -152

Reorder the terms:
152 + -152 + -26x + x2 = 0 + -152

Combine like terms: 152 + -152 = 0
0 + -26x + x2 = 0 + -152
-26x + x2 = 0 + -152

Combine like terms: 0 + -152 = -152
-26x + x2 = -152

The x term is -26x.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26x + 169 + x2 = -152 + 169

Reorder the terms:
169 + -26x + x2 = -152 + 169

Combine like terms: -152 + 169 = 17
169 + -26x + x2 = 17

Factor a perfect square on the left side:
(x + -13)(x + -13) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(x + -13) equal to 4.123105626 and -4.123105626.

Subproblem 1

x + -13 = 4.123105626 Simplifying x + -13 = 4.123105626 Reorder the terms: -13 + x = 4.123105626 Solving -13 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + x = 4.123105626 + 13 Combine like terms: -13 + 13 = 0 0 + x = 4.123105626 + 13 x = 4.123105626 + 13 Combine like terms: 4.123105626 + 13 = 17.123105626 x = 17.123105626 Simplifying x = 17.123105626

Subproblem 2

x + -13 = -4.123105626 Simplifying x + -13 = -4.123105626 Reorder the terms: -13 + x = -4.123105626 Solving -13 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + x = -4.123105626 + 13 Combine like terms: -13 + 13 = 0 0 + x = -4.123105626 + 13 x = -4.123105626 + 13 Combine like terms: -4.123105626 + 13 = 8.876894374 x = 8.876894374 Simplifying x = 8.876894374

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.123105626, 8.876894374}

See similar equations:

| 4x+15=27+2x | | (a-1/2)2 | | X+57=8a+22 | | p+14=93 | | -6-3y=-6+9y | | 4t-13=5y | | 1/4/c=16 | | d+14=69 | | 4(-2u+2)=2[3u+2(-u-7)] | | -5q+64=9 | | 9*8=x*18 | | -28+42x=0 | | 8x=55y+38 | | -8-5r=-4r | | 5.8p=46.4 | | -4.0-3-8x+1=5x+9 | | 10x+5y=20+5x | | 7z=-6+8z | | 3(x*x)-7x+4=0 | | 20x=a-5b-20c-5 | | (-12)(12)= | | 1/2x^3-108=0 | | Lnx=(Ln4)/2 | | 2c-8=c | | 5h=5 | | 9+8h=7h | | X+55=5x+23 | | 5x+10y=1085 | | 3r=-20+2r | | 4c^2+3c=6 | | 2a+4=3b | | -2a+14=3a-1 |

Equations solver categories