3x^2+8x-1=4+3x

Simple and best practice solution for 3x^2+8x-1=4+3x 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+8x-1=4+3x equation:


Simplifying
3x2 + 8x + -1 = 4 + 3x

Reorder the terms:
-1 + 8x + 3x2 = 4 + 3x

Solving
-1 + 8x + 3x2 = 4 + 3x

Solving for variable 'x'.

Reorder the terms:
-1 + -4 + 8x + -3x + 3x2 = 4 + 3x + -4 + -3x

Combine like terms: -1 + -4 = -5
-5 + 8x + -3x + 3x2 = 4 + 3x + -4 + -3x

Combine like terms: 8x + -3x = 5x
-5 + 5x + 3x2 = 4 + 3x + -4 + -3x

Reorder the terms:
-5 + 5x + 3x2 = 4 + -4 + 3x + -3x

Combine like terms: 4 + -4 = 0
-5 + 5x + 3x2 = 0 + 3x + -3x
-5 + 5x + 3x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-5 + 5x + 3x2 = 0

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

Divide each side by '3'.
-1.666666667 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + 1.666666667x + 1.666666667 + x2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + 1.666666667x + x2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + 1.666666667x + x2 = 0 + 1.666666667
1.666666667x + x2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
1.666666667x + x2 = 1.666666667

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 1.666666667 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 1.666666667 + 0.6944444447

Combine like terms: 1.666666667 + 0.6944444447 = 2.3611111117
0.6944444447 + 1.666666667x + x2 = 2.3611111117

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 2.3611111117

Calculate the square root of the right side: 1.536590743

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 1.536590743 and -1.536590743.

Subproblem 1

x + 0.8333333335 = 1.536590743 Simplifying x + 0.8333333335 = 1.536590743 Reorder the terms: 0.8333333335 + x = 1.536590743 Solving 0.8333333335 + x = 1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 1.536590743 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 1.536590743 + -0.8333333335 x = 1.536590743 + -0.8333333335 Combine like terms: 1.536590743 + -0.8333333335 = 0.7032574095 x = 0.7032574095 Simplifying x = 0.7032574095

Subproblem 2

x + 0.8333333335 = -1.536590743 Simplifying x + 0.8333333335 = -1.536590743 Reorder the terms: 0.8333333335 + x = -1.536590743 Solving 0.8333333335 + x = -1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -1.536590743 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -1.536590743 + -0.8333333335 x = -1.536590743 + -0.8333333335 Combine like terms: -1.536590743 + -0.8333333335 = -2.3699240765 x = -2.3699240765 Simplifying x = -2.3699240765

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7032574095, -2.3699240765}

See similar equations:

| 3x-13=3-8 | | 792/88 | | 5+2u=-u-7 | | 5x^2-20xy-4x+16y= | | 3z(z+6)=3z^2+18z-1 | | 11p+9-11=18p-6 | | sen^2x+2senx+3=0 | | -5m=9-4m | | 2x-4(-5x+12)=128 | | -6+3+7y+-4y= | | 7+7q=8q | | 8xsquared=32 | | 17+7x=34 | | 3x-2y+7=0 | | x^3-x^2-100000000=0 | | -5w+2w+-8w+-4w= | | (y-4/2)=(2-y/3) | | 0.50x+0.25(30)=27.5 | | 6+5x-3-3+(-x)= | | 2x^2+2y-3=0 | | (3x-1)/2=(4x/3) | | 10000/.25 | | 12y-8y^2=0 | | 3(7x+1)=10(3x-4) | | 9k=8k-10 | | 7x+-1(8x+-1(5x+30))=12 | | 12c+12=8c+36 | | 35/4v-4 | | 4a+1-3a=37 | | 3x-1=4x/3 | | d/416 | | -(3x+2)=14(2x-3) |

Equations solver categories