x*x-3-6x=0

Simple and best practice solution for x*x-3-6x=0 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*x-3-6x=0 equation:


Simplifying
x * x + -3 + -6x = 0

Multiply x * x
x2 + -3 + -6x = 0

Reorder the terms:
-3 + -6x + x2 = 0

Solving
-3 + -6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -6x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -6x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -6x + x2 = 0 + 3
-6x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
-6x + x2 = 3

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 3 + 9

Reorder the terms:
9 + -6x + x2 = 3 + 9

Combine like terms: 3 + 9 = 12
9 + -6x + x2 = 12

Factor a perfect square on the left side:
(x + -3)(x + -3) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(x + -3) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + -3 = 3.464101615 Simplifying x + -3 = 3.464101615 Reorder the terms: -3 + x = 3.464101615 Solving -3 + x = 3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + x = 3.464101615 + 3 x = 3.464101615 + 3 Combine like terms: 3.464101615 + 3 = 6.464101615 x = 6.464101615 Simplifying x = 6.464101615

Subproblem 2

x + -3 = -3.464101615 Simplifying x + -3 = -3.464101615 Reorder the terms: -3 + x = -3.464101615 Solving -3 + x = -3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + x = -3.464101615 + 3 x = -3.464101615 + 3 Combine like terms: -3.464101615 + 3 = -0.464101615 x = -0.464101615 Simplifying x = -0.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.464101615, -0.464101615}

See similar equations:

| -2(1+8)=x | | 4x-4=80 | | 6(x-4)=-2(x+8) | | 10x*8y=960 | | 10+8a=11a-6 | | (x^2+x-4)=0 | | 8x+4y=40 | | 1/2(18x-8)=6x-7/3 | | 6(3-x)-5(2x-4)=4(3x-1)+14 | | 10m=96 | | 2m+5=20-3m | | 7x-5=61 | | 15x+40=175 | | 7x-3=15+x | | 1200=s^2+6s | | x^2+5x-22=0 | | x+72=138 | | 16cos^4x=0 | | 9p-1=2 | | (7x-2)(11x-34)= | | 3r(2r+7)-(r-4)= | | 139-3X=5X+9 | | 4X^2+4X+2=0 | | 5p+28=12p | | 3x+2(7x-13)=-162 | | 240=-7x-3(4x-23) | | 7x^2+xy+y^2=9 | | 2x+5y=29 | | 5x-4(7x+23)=184 | | 5x-(7-2x)=8x+9 | | 2y-8=30 | | 2u-8=30 |

Equations solver categories