6x^2+8x-2=0

Simple and best practice solution for 6x^2+8x-2=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 6x^2+8x-2=0 equation:


Simplifying
6x2 + 8x + -2 = 0

Reorder the terms:
-2 + 8x + 6x2 = 0

Solving
-2 + 8x + 6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + 4x + 3x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + 4x + 3x2)' equal to zero and attempt to solve: Simplifying -1 + 4x + 3x2 = 0 Solving -1 + 4x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -0.3333333333 + 1.333333333x + x2 = 0 Move the constant term to the right: Add '0.3333333333' to each side of the equation. -0.3333333333 + 1.333333333x + 0.3333333333 + x2 = 0 + 0.3333333333 Reorder the terms: -0.3333333333 + 0.3333333333 + 1.333333333x + x2 = 0 + 0.3333333333 Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000 0.0000000000 + 1.333333333x + x2 = 0 + 0.3333333333 1.333333333x + x2 = 0 + 0.3333333333 Combine like terms: 0 + 0.3333333333 = 0.3333333333 1.333333333x + x2 = 0.3333333333 The x term is 1.333333333x. Take half its coefficient (0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. 1.333333333x + 0.4444444442 + x2 = 0.3333333333 + 0.4444444442 Reorder the terms: 0.4444444442 + 1.333333333x + x2 = 0.3333333333 + 0.4444444442 Combine like terms: 0.3333333333 + 0.4444444442 = 0.7777777775 0.4444444442 + 1.333333333x + x2 = 0.7777777775 Factor a perfect square on the left side: (x + 0.6666666665)(x + 0.6666666665) = 0.7777777775 Calculate the square root of the right side: 0.881917104 Break this problem into two subproblems by setting (x + 0.6666666665) equal to 0.881917104 and -0.881917104.

Subproblem 1

x + 0.6666666665 = 0.881917104 Simplifying x + 0.6666666665 = 0.881917104 Reorder the terms: 0.6666666665 + x = 0.881917104 Solving 0.6666666665 + x = 0.881917104 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = 0.881917104 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = 0.881917104 + -0.6666666665 x = 0.881917104 + -0.6666666665 Combine like terms: 0.881917104 + -0.6666666665 = 0.2152504375 x = 0.2152504375 Simplifying x = 0.2152504375

Subproblem 2

x + 0.6666666665 = -0.881917104 Simplifying x + 0.6666666665 = -0.881917104 Reorder the terms: 0.6666666665 + x = -0.881917104 Solving 0.6666666665 + x = -0.881917104 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = -0.881917104 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = -0.881917104 + -0.6666666665 x = -0.881917104 + -0.6666666665 Combine like terms: -0.881917104 + -0.6666666665 = -1.5485837705 x = -1.5485837705 Simplifying x = -1.5485837705

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2152504375, -1.5485837705}

Solution

x = {0.2152504375, -1.5485837705}

See similar equations:

| 2n+4=4n+6 | | x-8x^(1/2)+11=0 | | 2/3+x=(5x-1)/5-6 | | X/3+10=4 | | 120-2x=34x+20 | | 3x^2+9x+3=0 | | 2n+5=n+8 | | 5-7x=35-21x | | -2X-10=-10 | | 13-7x=127-8x | | -2X-10=-4 | | x-8x^1/2+11=0 | | 20(t)=-4.9t^2+32t+2 | | 5y=18+2y | | w=675624782 | | 2x+20=9x+50 | | 12x=3x | | 256-2x=43x+16 | | 234-4x=41x+19 | | 2x+20=9+50 | | 3x-3=12x-91 | | 10y-9y=15 | | 10y-9y= | | 24-2y=6 | | (n+6)*7=14 | | (n+6)*2=4 | | (n+3)*3=15 | | 0=1.5x^2-9x+1080 | | 2w-7=w+1 | | 3344=3-250-453 | | h=J+K+5 | | l=j+k+t |

Equations solver categories