2x^2-2x-14=0

Simple and best practice solution for 2x^2-2x-14=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 2x^2-2x-14=0 equation:


Simplifying
2x2 + -2x + -14 = 0

Reorder the terms:
-14 + -2x + 2x2 = 0

Solving
-14 + -2x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + -1x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + -1x + x2)' equal to zero and attempt to solve: Simplifying -7 + -1x + x2 = 0 Solving -7 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '7' to each side of the equation. -7 + -1x + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + -1x + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x + x2 = 0 + 7 -1x + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 -1x + x2 = 7 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = 7 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 7 + 0.25 Combine like terms: 7 + 0.25 = 7.25 0.25 + -1x + x2 = 7.25 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 7.25 Calculate the square root of the right side: 2.692582404 Break this problem into two subproblems by setting (x + -0.5) equal to 2.692582404 and -2.692582404.

Subproblem 1

x + -0.5 = 2.692582404 Simplifying x + -0.5 = 2.692582404 Reorder the terms: -0.5 + x = 2.692582404 Solving -0.5 + x = 2.692582404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 2.692582404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 2.692582404 + 0.5 x = 2.692582404 + 0.5 Combine like terms: 2.692582404 + 0.5 = 3.192582404 x = 3.192582404 Simplifying x = 3.192582404

Subproblem 2

x + -0.5 = -2.692582404 Simplifying x + -0.5 = -2.692582404 Reorder the terms: -0.5 + x = -2.692582404 Solving -0.5 + x = -2.692582404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -2.692582404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -2.692582404 + 0.5 x = -2.692582404 + 0.5 Combine like terms: -2.692582404 + 0.5 = -2.192582404 x = -2.192582404 Simplifying x = -2.192582404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.192582404, -2.192582404}

Solution

x = {3.192582404, -2.192582404}

See similar equations:

| 9x+99=-1-x | | 5x+8y=9z | | 8-x=-2x+11 | | -6x+7=-41+6x | | 11-3-2-5= | | -2x+=-x-2 | | -7x+3+x=-63 | | -106=6x+5x-7 | | y+(4+y)=0 | | 9x^7-45x^6+18x^5=0 | | 6x-3=8x-12-3 | | -18=5x-4x-10 | | -x+2(x-1)=-(x+2) | | 6x^2-5x+146=0 | | 41=7x-3x-3 | | 6a=90 | | 3x+3+2x=-42 | | 4x+4x=60 | | 3x+4=x+t | | 2(a+4a)=12 | | 24n^3-64n^2= | | 7x+4=6x-7 | | 7a=27+2a | | 20x+10y=22500 | | -0.5x=4.3 | | 4+7x+7x=-24 | | (y+3)y=14 | | 9+3p-5=8p+4-4p | | 8x-2(4x+9)=9 | | 26=7x-x+2 | | 45x-5y-30=0 | | 5z+4z= |

Equations solver categories