24-8x=x^2

Simple and best practice solution for 24-8x=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 24-8x=x^2 equation:


Simplifying
24 + -8x = x2

Solving
24 + -8x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
24 + -8x + -1x2 = 0

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

Divide each side by '-1'.
-24 + 8x + x2 = 0

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 8x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + 8x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 8x + x2 = 0 + 24
8x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
8x + x2 = 24

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 = 24 + 16

Reorder the terms:
16 + 8x + x2 = 24 + 16

Combine like terms: 24 + 16 = 40
16 + 8x + x2 = 40

Factor a perfect square on the left side:
(x + 4)(x + 4) = 40

Calculate the square root of the right side: 6.32455532

Break this problem into two subproblems by setting 
(x + 4) equal to 6.32455532 and -6.32455532.

Subproblem 1

x + 4 = 6.32455532 Simplifying x + 4 = 6.32455532 Reorder the terms: 4 + x = 6.32455532 Solving 4 + x = 6.32455532 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 = 6.32455532 + -4 Combine like terms: 4 + -4 = 0 0 + x = 6.32455532 + -4 x = 6.32455532 + -4 Combine like terms: 6.32455532 + -4 = 2.32455532 x = 2.32455532 Simplifying x = 2.32455532

Subproblem 2

x + 4 = -6.32455532 Simplifying x + 4 = -6.32455532 Reorder the terms: 4 + x = -6.32455532 Solving 4 + x = -6.32455532 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 = -6.32455532 + -4 Combine like terms: 4 + -4 = 0 0 + x = -6.32455532 + -4 x = -6.32455532 + -4 Combine like terms: -6.32455532 + -4 = -10.32455532 x = -10.32455532 Simplifying x = -10.32455532

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.32455532, -10.32455532}

See similar equations:

| -2x^4+14x^3-28x^2=0 | | (2z-1)=(z+2) | | 18237.12=3039.52+138.16h | | Y=(k-2x+4k-8) | | -11x+15x-63=93 | | (5m-9)=(m+11) | | 5y+1.2=48 | | 4(x+1)=2x-19 | | 11-2*x=6 | | 18-5(w+3)=-2(5w+1)+15 | | y/-2-2= | | 4x+3+4x+3+4x+3= | | 550.4288=6.28r^2+101.108r | | x+(x+1)=(x+2)+(x+3)+(x+4) | | X-(-5)=-10 | | 8x+2y=540 | | (x*3)+209=(x*13)-11 | | 8(3x-1)=64 | | 16.16+5.7n=-6.06+3.5n | | -5y^4+44y^2+576=0 | | 550.4288=6.28r^2+101.108 | | -3x+3=-x+8 | | 3^3x-2•1/9=81 | | (5+x)*(x-2)=0 | | -5y^4+44y^2-576=0 | | -5y^4-44y^2-576=0 | | v=-4.62+0.7v | | (x-1)+3(x-1)=2x+4 | | 3Q+10=Q | | y=x+4-6 | | -10r+15=25 | | -5y^2-44y^2-576=0 |

Equations solver categories