6x^2+x-2=-x^2-x

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


Simplifying
6x2 + x + -2 = -1x2 + -1x

Reorder the terms:
-2 + x + 6x2 = -1x2 + -1x

Reorder the terms:
-2 + x + 6x2 = -1x + -1x2

Solving
-2 + x + 6x2 = -1x + -1x2

Solving for variable 'x'.

Reorder the terms:
-2 + x + x + 6x2 + x2 = -1x + -1x2 + x + x2

Combine like terms: x + x = 2x
-2 + 2x + 6x2 + x2 = -1x + -1x2 + x + x2

Combine like terms: 6x2 + x2 = 7x2
-2 + 2x + 7x2 = -1x + -1x2 + x + x2

Reorder the terms:
-2 + 2x + 7x2 = -1x + x + -1x2 + x2

Combine like terms: -1x + x = 0
-2 + 2x + 7x2 = 0 + -1x2 + x2
-2 + 2x + 7x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-2 + 2x + 7x2 = 0

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

Divide each side by '7'.
-0.2857142857 + 0.2857142857x + x2 = 0

Move the constant term to the right:

Add '0.2857142857' to each side of the equation.
-0.2857142857 + 0.2857142857x + 0.2857142857 + x2 = 0 + 0.2857142857

Reorder the terms:
-0.2857142857 + 0.2857142857 + 0.2857142857x + x2 = 0 + 0.2857142857

Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000
0.0000000000 + 0.2857142857x + x2 = 0 + 0.2857142857
0.2857142857x + x2 = 0 + 0.2857142857

Combine like terms: 0 + 0.2857142857 = 0.2857142857
0.2857142857x + x2 = 0.2857142857

The x term is 0.2857142857x.  Take half its coefficient (0.1428571429).
Square it (0.02040816328) and add it to both sides.

Add '0.02040816328' to each side of the equation.
0.2857142857x + 0.02040816328 + x2 = 0.2857142857 + 0.02040816328

Reorder the terms:
0.02040816328 + 0.2857142857x + x2 = 0.2857142857 + 0.02040816328

Combine like terms: 0.2857142857 + 0.02040816328 = 0.30612244898
0.02040816328 + 0.2857142857x + x2 = 0.30612244898

Factor a perfect square on the left side:
(x + 0.1428571429)(x + 0.1428571429) = 0.30612244898

Calculate the square root of the right side: 0.553283335

Break this problem into two subproblems by setting 
(x + 0.1428571429) equal to 0.553283335 and -0.553283335.

Subproblem 1

x + 0.1428571429 = 0.553283335 Simplifying x + 0.1428571429 = 0.553283335 Reorder the terms: 0.1428571429 + x = 0.553283335 Solving 0.1428571429 + x = 0.553283335 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1428571429' to each side of the equation. 0.1428571429 + -0.1428571429 + x = 0.553283335 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = 0.553283335 + -0.1428571429 x = 0.553283335 + -0.1428571429 Combine like terms: 0.553283335 + -0.1428571429 = 0.4104261921 x = 0.4104261921 Simplifying x = 0.4104261921

Subproblem 2

x + 0.1428571429 = -0.553283335 Simplifying x + 0.1428571429 = -0.553283335 Reorder the terms: 0.1428571429 + x = -0.553283335 Solving 0.1428571429 + x = -0.553283335 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1428571429' to each side of the equation. 0.1428571429 + -0.1428571429 + x = -0.553283335 + -0.1428571429 Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000 0.0000000000 + x = -0.553283335 + -0.1428571429 x = -0.553283335 + -0.1428571429 Combine like terms: -0.553283335 + -0.1428571429 = -0.6961404779 x = -0.6961404779 Simplifying x = -0.6961404779

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4104261921, -0.6961404779}

See similar equations:

| 20x+20=4(4x+3) | | 4/5(1)^5/4 | | -6c-4=7c-12 | | h+3h+4g=100 | | 5l+3l= | | 3l+3l= | | 3x+23=6x-7 | | 10x-(-7+6x)= | | -11.2=5.6(x-1.75) | | ((18-3x)/2x)=-6 | | X^3+5x^2-84x= | | 7x-35=6-63 | | 6x(x-2)+4(3x-5)=130 | | 77.4=9(m+2.3) | | 8x-9=5x+12 | | 1900=19(x+20) | | 9+x=58 | | 0=p^2-9p-32 | | 5x+16=14-74 | | 7n-5n=5n | | 16x^2+15=0 | | a/x-c | | (5-2x)(2-x)=22-8x | | -24=11x | | 6000/60 | | 39(1+4n)-2(5n-3)=25 | | 5x-2[4x-9]=5+5[2-x] | | (logx)^2-(9/4)=0 | | k^2+3ak+k=0 | | 3/4(8r-16s)2 | | =(2x^2+5y)(2x^2+5y)(2x^2+5y) | | 6(k+7)-(5k-8)=-5 |

Equations solver categories