2(x^2-2x-16)=0

Simple and best practice solution for 2(x^2-2x-16)=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 2(x^2-2x-16)=0 equation:


Simplifying
2(x2 + -2x + -16) = 0

Reorder the terms:
2(-16 + -2x + x2) = 0
(-16 * 2 + -2x * 2 + x2 * 2) = 0
(-32 + -4x + 2x2) = 0

Solving
-32 + -4x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-16 + -2x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-16 + -2x + x2)' equal to zero and attempt to solve: Simplifying -16 + -2x + x2 = 0 Solving -16 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '16' to each side of the equation. -16 + -2x + 16 + x2 = 0 + 16 Reorder the terms: -16 + 16 + -2x + x2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -2x + x2 = 0 + 16 -2x + x2 = 0 + 16 Combine like terms: 0 + 16 = 16 -2x + x2 = 16 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 16 + 1 Reorder the terms: 1 + -2x + x2 = 16 + 1 Combine like terms: 16 + 1 = 17 1 + -2x + x2 = 17 Factor a perfect square on the left side: (x + -1)(x + -1) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (x + -1) equal to 4.123105626 and -4.123105626.

Subproblem 1

x + -1 = 4.123105626 Simplifying x + -1 = 4.123105626 Reorder the terms: -1 + x = 4.123105626 Solving -1 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 4.123105626 + 1 Combine like terms: -1 + 1 = 0 0 + x = 4.123105626 + 1 x = 4.123105626 + 1 Combine like terms: 4.123105626 + 1 = 5.123105626 x = 5.123105626 Simplifying x = 5.123105626

Subproblem 2

x + -1 = -4.123105626 Simplifying x + -1 = -4.123105626 Reorder the terms: -1 + x = -4.123105626 Solving -1 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -4.123105626 + 1 Combine like terms: -1 + 1 = 0 0 + x = -4.123105626 + 1 x = -4.123105626 + 1 Combine like terms: -4.123105626 + 1 = -3.123105626 x = -3.123105626 Simplifying x = -3.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.123105626, -3.123105626}

Solution

x = {5.123105626, -3.123105626}

See similar equations:

| y=-4(1)+3 | | 7=-4(3x+1)+13x | | y=-4(-1)+3 | | y=-4(-4)+3 | | 3/1-x=7/1+x | | 6.75/3=x | | 7x-(5x+5)=9x-19 | | 40/4*(10-8)+9 | | -2x+24=16-2x | | z-3z=7z-3-z | | 6x+1+x=48 | | 4(3-0.1x)=15-0.6x | | -x-2/5=x+1/2+4/5 | | y=2(9)-2 | | 4y-7=3y-14 | | 3*1/4*8 | | 7x+12y=164000 | | -12/4x^0y^-3 | | 3x+3=5x+7 | | 11-9x-7-5x=6 | | 25x^5-36x^3=0 | | (6x)/(x^2+3)^2 | | -6.9=8.1-1.5x | | y=-9(3)+8 | | -7/4x=1/2 | | 50/5+(7*2)*9+4 | | -2x-7/2 | | y=-9(2)+8 | | -2-7/2 | | 6=1-5x | | 50/5+(7*2) | | 50/5+(7x2) |

Equations solver categories