8x^2-24x-4=0

Simple and best practice solution for 8x^2-24x-4=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 8x^2-24x-4=0 equation:


Simplifying
8x2 + -24x + -4 = 0

Reorder the terms:
-4 + -24x + 8x2 = 0

Solving
-4 + -24x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -6x + 2x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1 + -6x + 2x2)' equal to zero and attempt to solve: Simplifying -1 + -6x + 2x2 = 0 Solving -1 + -6x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -0.5 + -3x + x2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + -3x + 0.5 + x2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + -3x + x2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + -3x + x2 = 0 + 0.5 -3x + x2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 -3x + x2 = 0.5 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 0.5 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 0.5 + 2.25 Combine like terms: 0.5 + 2.25 = 2.75 2.25 + -3x + x2 = 2.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 2.75 Calculate the square root of the right side: 1.658312395 Break this problem into two subproblems by setting (x + -1.5) equal to 1.658312395 and -1.658312395.

Subproblem 1

x + -1.5 = 1.658312395 Simplifying x + -1.5 = 1.658312395 Reorder the terms: -1.5 + x = 1.658312395 Solving -1.5 + x = 1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.658312395 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.658312395 + 1.5 x = 1.658312395 + 1.5 Combine like terms: 1.658312395 + 1.5 = 3.158312395 x = 3.158312395 Simplifying x = 3.158312395

Subproblem 2

x + -1.5 = -1.658312395 Simplifying x + -1.5 = -1.658312395 Reorder the terms: -1.5 + x = -1.658312395 Solving -1.5 + x = -1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.658312395 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.658312395 + 1.5 x = -1.658312395 + 1.5 Combine like terms: -1.658312395 + 1.5 = -0.158312395 x = -0.158312395 Simplifying x = -0.158312395

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.158312395, -0.158312395}

Solution

x = {3.158312395, -0.158312395}

See similar equations:

| 3x^2-12x+38=-3x^2-10x | | 4x(-x-3)=2(-2x-2)-2 | | 5xy(-2x)(-3y)= | | -34+(-36)= | | 5(1-4k)=-115 | | -(15m^2+6m^3)-(-5m)= | | -(13m^2+6m^3)-(-5m)= | | 19-(-5)= | | 3x+(2x-y)=31 | | 18+(-25)= | | 9x^2-16x+8=0 | | -8a-6(2a-1)=86 | | 17x+4=33.1+22.3x | | 8p-16=0 | | 6Ln(4x)=24 | | 13n^2-17=0 | | h^2-8+3h+10=0 | | -4k-5(5k+2)=-155 | | (-7b+6)-(2b-2)= | | 1x=0.625 | | 13=2(2x-7) | | 4b+-3d=n | | (5t-6)=(t+1)+2 | | 2(3x-2x)=x-4 | | 1x=-0.625 | | z+19=149z | | xy+4y-396=0 | | z=-1+10i | | f(x)=6x^3-17x^2-4x-3 | | -4(4n+1)=24 | | 35+p=-8p+5(7+2p) | | xy+5xy= |

Equations solver categories