2=3x^2+4x-1

Simple and best practice solution for 2=3x^2+4x-1 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=3x^2+4x-1 equation:


Simplifying
2 = 3x2 + 4x + -1

Reorder the terms:
2 = -1 + 4x + 3x2

Solving
2 = -1 + 4x + 3x2

Solving for variable 'x'.

Combine like terms: 2 + 1 = 3
3 + -4x + -3x2 = -1 + 4x + 3x2 + 1 + -4x + -3x2

Reorder the terms:
3 + -4x + -3x2 = -1 + 1 + 4x + -4x + 3x2 + -3x2

Combine like terms: -1 + 1 = 0
3 + -4x + -3x2 = 0 + 4x + -4x + 3x2 + -3x2
3 + -4x + -3x2 = 4x + -4x + 3x2 + -3x2

Combine like terms: 4x + -4x = 0
3 + -4x + -3x2 = 0 + 3x2 + -3x2
3 + -4x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
3 + -4x + -3x2 = 0

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

Divide each side by '-3'.
-1 + 1.333333333x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 1.333333333x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 1.333333333x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 1.333333333x + x2 = 0 + 1
1.333333333x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
1.333333333x + x2 = 1

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 = 1 + 0.4444444442

Reorder the terms:
0.4444444442 + 1.333333333x + x2 = 1 + 0.4444444442

Combine like terms: 1 + 0.4444444442 = 1.4444444442
0.4444444442 + 1.333333333x + x2 = 1.4444444442

Factor a perfect square on the left side:
(x + 0.6666666665)(x + 0.6666666665) = 1.4444444442

Calculate the square root of the right side: 1.201850425

Break this problem into two subproblems by setting 
(x + 0.6666666665) equal to 1.201850425 and -1.201850425.

Subproblem 1

x + 0.6666666665 = 1.201850425 Simplifying x + 0.6666666665 = 1.201850425 Reorder the terms: 0.6666666665 + x = 1.201850425 Solving 0.6666666665 + x = 1.201850425 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 = 1.201850425 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = 1.201850425 + -0.6666666665 x = 1.201850425 + -0.6666666665 Combine like terms: 1.201850425 + -0.6666666665 = 0.5351837585 x = 0.5351837585 Simplifying x = 0.5351837585

Subproblem 2

x + 0.6666666665 = -1.201850425 Simplifying x + 0.6666666665 = -1.201850425 Reorder the terms: 0.6666666665 + x = -1.201850425 Solving 0.6666666665 + x = -1.201850425 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 = -1.201850425 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = -1.201850425 + -0.6666666665 x = -1.201850425 + -0.6666666665 Combine like terms: -1.201850425 + -0.6666666665 = -1.8685170915 x = -1.8685170915 Simplifying x = -1.8685170915

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5351837585, -1.8685170915}

See similar equations:

| 7(x+3)=2x+16 | | 4(x+3)=3(x-4) | | 37+8x=4(7x-26) | | y=-(3-x) | | 8j=86 | | 18n^2=2n^2 | | -88=2+5(4v+2) | | 4+3x=180 | | -2c+4=28 | | b+4=2b-5 | | 12x=-56 | | 2x^4-3x^2-54=0 | | -18-54= | | -3=-3-5v-6v | | 7/3x+5/2x^3 | | 6-3(2x+8)=12 | | 27+21x=-15 | | 49overn=7 | | 55=11x-77 | | 2n+8=2n+-5 | | 8x+9x-50=75-8x | | V=lwhfori | | 3[4(x-2)-10]=14 | | -5.2/0.04 | | n-5n= | | 18+24/(-3)2-(-5) | | 4x+11=8x+1 | | 3/2b+b+(b+45)+(2b-90)+90 | | 8(3x+5)=24x+40 | | -3.7=2m+51 | | -3+-10x=25+4x | | 2(4-2r)=-2(r+6) |

Equations solver categories