10x=x^2-18

Simple and best practice solution for 10x=x^2-18 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 10x=x^2-18 equation:


Simplifying
10x = x2 + -18

Reorder the terms:
10x = -18 + x2

Solving
10x = -18 + x2

Solving for variable 'x'.

Reorder the terms:
18 + 10x + -1x2 = -18 + x2 + 18 + -1x2

Reorder the terms:
18 + 10x + -1x2 = -18 + 18 + x2 + -1x2

Combine like terms: -18 + 18 = 0
18 + 10x + -1x2 = 0 + x2 + -1x2
18 + 10x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
18 + 10x + -1x2 = 0

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

Divide each side by '-1'.
-18 + -10x + x2 = 0

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + -10x + 18 + x2 = 0 + 18

Reorder the terms:
-18 + 18 + -10x + x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -10x + x2 = 0 + 18
-10x + x2 = 0 + 18

Combine like terms: 0 + 18 = 18
-10x + x2 = 18

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 18 + 25

Reorder the terms:
25 + -10x + x2 = 18 + 25

Combine like terms: 18 + 25 = 43
25 + -10x + x2 = 43

Factor a perfect square on the left side:
(x + -5)(x + -5) = 43

Calculate the square root of the right side: 6.557438524

Break this problem into two subproblems by setting 
(x + -5) equal to 6.557438524 and -6.557438524.

Subproblem 1

x + -5 = 6.557438524 Simplifying x + -5 = 6.557438524 Reorder the terms: -5 + x = 6.557438524 Solving -5 + x = 6.557438524 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 6.557438524 + 5 Combine like terms: -5 + 5 = 0 0 + x = 6.557438524 + 5 x = 6.557438524 + 5 Combine like terms: 6.557438524 + 5 = 11.557438524 x = 11.557438524 Simplifying x = 11.557438524

Subproblem 2

x + -5 = -6.557438524 Simplifying x + -5 = -6.557438524 Reorder the terms: -5 + x = -6.557438524 Solving -5 + x = -6.557438524 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -6.557438524 + 5 Combine like terms: -5 + 5 = 0 0 + x = -6.557438524 + 5 x = -6.557438524 + 5 Combine like terms: -6.557438524 + 5 = -1.557438524 x = -1.557438524 Simplifying x = -1.557438524

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.557438524, -1.557438524}

See similar equations:

| 28=(5n+3) | | cos(80)=500 | | 2-8(-1+8r)=266 | | 5n-7=39 | | 6+39=27 | | 7+5c=37 | | 2x^3+80=50 | | (9b+8)(9b-8)= | | 6x+10y=-10 | | 809+x=1268 | | 5x-8/3-4x=6x | | 4(2x+6+7)-5x=61 | | 2x^2+8n=-6 | | 4s+14=30 | | 7+15t=-38 | | 8ax-5(ax+b)=6b+3x | | 22x+6x-14=22x+10-6x | | 22x+6x-14=22x+10-6 | | 2-10n+5n=6-89 | | 2x+4(1-x)=3 | | 9t+3=28.2 | | 9222222222222222xa= | | 69=-31+x | | 8y^2+16y=0 | | −70x^2/28x | | 91=-w+189 | | ax+2x=c | | 225=9(7+9+y) | | 6-6(4m-6)=114 | | f(x)=3(A) | | 8a^4-3ab^2c=0 | | (X+3)(x+2)=72 |

Equations solver categories