(3x^2-4x-6)=

Simple and best practice solution for (3x^2-4x-6)= 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 (3x^2-4x-6)= equation:


Simplifying
(3x2 + -4x + -6) = 0

Reorder the terms:
(-6 + -4x + 3x2) = 0

Remove parenthesis around (-6 + -4x + 3x2)
-6 + -4x + 3x2 = 0

Solving
-6 + -4x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-2 + -1.333333333x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -1.333333333x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -1.333333333x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -1.333333333x + x2 = 0 + 2
-1.333333333x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-1.333333333x + x2 = 2

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 = 2 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333x + x2 = 2 + 0.4444444442

Combine like terms: 2 + 0.4444444442 = 2.4444444442
0.4444444442 + -1.333333333x + x2 = 2.4444444442

Factor a perfect square on the left side:
(x + -0.6666666665)(x + -0.6666666665) = 2.4444444442

Calculate the square root of the right side: 1.56347192

Break this problem into two subproblems by setting 
(x + -0.6666666665) equal to 1.56347192 and -1.56347192.

Subproblem 1

x + -0.6666666665 = 1.56347192 Simplifying x + -0.6666666665 = 1.56347192 Reorder the terms: -0.6666666665 + x = 1.56347192 Solving -0.6666666665 + x = 1.56347192 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 = 1.56347192 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = 1.56347192 + 0.6666666665 x = 1.56347192 + 0.6666666665 Combine like terms: 1.56347192 + 0.6666666665 = 2.2301385865 x = 2.2301385865 Simplifying x = 2.2301385865

Subproblem 2

x + -0.6666666665 = -1.56347192 Simplifying x + -0.6666666665 = -1.56347192 Reorder the terms: -0.6666666665 + x = -1.56347192 Solving -0.6666666665 + x = -1.56347192 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 = -1.56347192 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = -1.56347192 + 0.6666666665 x = -1.56347192 + 0.6666666665 Combine like terms: -1.56347192 + 0.6666666665 = -0.8968052535 x = -0.8968052535 Simplifying x = -0.8968052535

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.2301385865, -0.8968052535}

See similar equations:

| (5-4)= | | 4(6+x)=3(4+x) | | 17-18= | | -16t^2+8t+80=0 | | 8x^2-400=0 | | 4(3x+20)=2(2x-5) | | S-16=-25 | | 648/(-6)+(-25)*(-4)= | | W-18=-13 | | 150x^2+390x-180=0 | | 3(15-x)=3(5+x) | | a^2=11a+24 | | 2x+1=-2(2x+5) | | 2a+5b+2a= | | x+60=6x | | 7y^3-27y^2-4t=0 | | 2-2x=-8(5+2x) | | 3x-6+2=2x-20 | | 2w^2=18w | | 3-7(7k-7)=10-7k | | 4(y-5)=2(y-10) | | W^2-2w-35=0 | | x=6x+60 | | 0=-7c-13 | | 5(3x-13)=10 | | 3b^2=21b | | 5x^2+4x-20=0 | | 3(y-5)+2(3+y)=21 | | 12-x=-(x+12) | | 7x+17=101 | | 7x-21=42 | | .333(18x-12)=2(3x-2) |

Equations solver categories