6x+3=x^2

Simple and best practice solution for 6x+3=x^2 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 6x+3=x^2 equation:


Simplifying
6x + 3 = x2

Reorder the terms:
3 + 6x = x2

Solving
3 + 6x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
3 + 6x + -1x2 = 0

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

Divide each side by '-1'.
-3 + -6x + x2 = 0

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:

| 6z+6=5y-(4) | | 3(-7)=8 | | 87-4x+12=x+15 | | x+95=3x-35 | | 1+3(5)-5=5-4+2(5) | | 7x+11=5x+21 | | 2+5n-3n=28 | | h(x)=-2x^2+12x | | (3x-1)(x+2)=3(x+4)(x-1)-2 | | 8(y+2)=2(3+4) | | -4x+36=8 | | 15(13)= | | 15x-7x=18x+60 | | 6y(2y-5)=29 | | 0=-5t^2+15t+30 | | -5p+9=24 | | 6x+4=-6x+16 | | 15n+4-9n=-32 | | 5x-10=-2x+46 | | h=-5t^2+15t+30 | | h=-5t^2+15t+31 | | 6-3d=5(2d-d) | | 0.19x+0.4(x-2)=0.01(2x-3) | | 17=-5(4x+3)+21x | | -4x-24y=24 | | 12(201)= | | g(2b)=4b | | 0.18(y-3)+0.14y=0.16y-0.5 | | x-1/3=/5 | | 6y+3x-4y-4x= | | 4x-26=3x+19 | | y=2x+49 |

Equations solver categories