x^2=8x-6

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


Simplifying
x2 = 8x + -6

Reorder the terms:
x2 = -6 + 8x

Solving
x2 = -6 + 8x

Solving for variable 'x'.

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

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

Combine like terms: -6 + 6 = 0
6 + -8x + x2 = 0 + 8x + -8x
6 + -8x + x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
6 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + -8x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + -8x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -8x + x2 = 0 + -6
-8x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
-8x + x2 = -6

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -6 + 16

Reorder the terms:
16 + -8x + x2 = -6 + 16

Combine like terms: -6 + 16 = 10
16 + -8x + x2 = 10

Factor a perfect square on the left side:
(x + -4)(x + -4) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(x + -4) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + -4 = 3.16227766 Simplifying x + -4 = 3.16227766 Reorder the terms: -4 + x = 3.16227766 Solving -4 + x = 3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.16227766 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.16227766 + 4 x = 3.16227766 + 4 Combine like terms: 3.16227766 + 4 = 7.16227766 x = 7.16227766 Simplifying x = 7.16227766

Subproblem 2

x + -4 = -3.16227766 Simplifying x + -4 = -3.16227766 Reorder the terms: -4 + x = -3.16227766 Solving -4 + x = -3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.16227766 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.16227766 + 4 x = -3.16227766 + 4 Combine like terms: -3.16227766 + 4 = 0.83772234 x = 0.83772234 Simplifying x = 0.83772234

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.16227766, 0.83772234}

See similar equations:

| 3x-1/5=x+3/3 | | 7x+3=2-(4x-9) | | 13x=195 | | Xg+HY=J | | x-2=14+6 | | 2(x-1)-2=-4 | | 7-y+.3y=.6(7-y+y) | | 2x+3x-5=x-25 | | 0=x^2+11x-49 | | p(x)=0.3x^2+44x-30 | | =3(100)-400+75 | | (20-3x)/x=2 | | x+.3y=.6(x+y) | | 8-9(3x+2)=7 | | 3/8(-7x-2)=-5 | | x+.3y=4.2 | | 3(x+3)+14=2(x+5) | | ex=17 | | 17.10x-3=6 | | =3x^2-40x+75 | | 5-y=18 | | 400=10x+1.5x | | 4(2x+1)=7x-8(3x+10) | | 1/(t+3)+3/(t+7)=4/(t^2+10t+21) | | ln(x^2-16)=0 | | (9x^2)/(7x+3) | | p=4L+4W | | .2(y-1)+.25(y+2)=3 | | -4(t-2)+6t=4t-1 | | (3m^8n^3/7m)*(4n^2/9m^5n^8) | | 3x-3=-4x+11 | | 5(y-5)/2=-3y |

Equations solver categories