8-x^2=12+6x

Simple and best practice solution for 8-x^2=12+6x 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 8-x^2=12+6x equation:


Simplifying
8 + -1x2 = 12 + 6x

Solving
8 + -1x2 = 12 + 6x

Solving for variable 'x'.

Reorder the terms:
8 + -12 + -6x + -1x2 = 12 + 6x + -12 + -6x

Combine like terms: 8 + -12 = -4
-4 + -6x + -1x2 = 12 + 6x + -12 + -6x

Reorder the terms:
-4 + -6x + -1x2 = 12 + -12 + 6x + -6x

Combine like terms: 12 + -12 = 0
-4 + -6x + -1x2 = 0 + 6x + -6x
-4 + -6x + -1x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-4 + -6x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(4 + 6x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(4 + 6x + x2)' equal to zero and attempt to solve: Simplifying 4 + 6x + x2 = 0 Solving 4 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + 6x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + 6x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 6x + x2 = 0 + -4 6x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 6x + x2 = -4 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 = -4 + 9 Reorder the terms: 9 + 6x + x2 = -4 + 9 Combine like terms: -4 + 9 = 5 9 + 6x + x2 = 5 Factor a perfect square on the left side: (x + 3)(x + 3) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x + 3) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + 3 = 2.236067978 Simplifying x + 3 = 2.236067978 Reorder the terms: 3 + x = 2.236067978 Solving 3 + x = 2.236067978 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 = 2.236067978 + -3 Combine like terms: 3 + -3 = 0 0 + x = 2.236067978 + -3 x = 2.236067978 + -3 Combine like terms: 2.236067978 + -3 = -0.763932022 x = -0.763932022 Simplifying x = -0.763932022

Subproblem 2

x + 3 = -2.236067978 Simplifying x + 3 = -2.236067978 Reorder the terms: 3 + x = -2.236067978 Solving 3 + x = -2.236067978 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 = -2.236067978 + -3 Combine like terms: 3 + -3 = 0 0 + x = -2.236067978 + -3 x = -2.236067978 + -3 Combine like terms: -2.236067978 + -3 = -5.236067978 x = -5.236067978 Simplifying x = -5.236067978

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.763932022, -5.236067978}

Solution

x = {-0.763932022, -5.236067978}

See similar equations:

| 3xk=1 | | 1*-1*t+-1*t+3t= | | 1.8(x-9)=9.9 | | 3b-20=100 | | 10000+100x=10(3x^2) | | 2-(x-4)=-2x+3 | | 12-8a=18 | | Logx(1000)=-4 | | -8/9y=-16/5 | | 20x+60=420 | | 20x+30=420 | | -8/9*y=-16/5 | | 356=2(79)+2w | | (X+8)+84=x | | -5(x-4)=-x-48 | | f(8)=x-5 | | 1/5(5x-8)=-5/-4-3/4 | | 25r^3-20r+0=0 | | 8(x)=x-5 | | 312=2(67)+2w | | k-27.3=-577 | | 2r-2=3r-6 | | 4x9/10 | | 4x+11=10x+29 | | 6k-9k=-32 | | 13=q/2--9 | | ln(x-5)+ln(x-8)= | | ln(4x^2+7x-15)-ln(4x-5)=0 | | x+12-4x=2x+22 | | -(-3-2x)=37 | | f(-7)=5-8x | | -3m-19=12 |

Equations solver categories