-3x^2-x+3=-3x

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


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

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

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

Solving for variable 'x'.

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

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

Combine like terms: -3x + 3x = 0
3 + 2x + -3x2 = 0

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

Divide each side by '-3'.
-1 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -0.6666666667x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -0.6666666667x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -0.6666666667x + x2 = 0 + 1
-0.6666666667x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-0.6666666667x + x2 = 1

The x term is -0.6666666667x.  Take half its coefficient (-0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
-0.6666666667x + 0.1111111112 + x2 = 1 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = 1 + 0.1111111112

Combine like terms: 1 + 0.1111111112 = 1.1111111112
0.1111111112 + -0.6666666667x + x2 = 1.1111111112

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = 1.1111111112

Calculate the square root of the right side: 1.054092553

Break this problem into two subproblems by setting 
(x + -0.3333333334) equal to 1.054092553 and -1.054092553.

Subproblem 1

x + -0.3333333334 = 1.054092553 Simplifying x + -0.3333333334 = 1.054092553 Reorder the terms: -0.3333333334 + x = 1.054092553 Solving -0.3333333334 + x = 1.054092553 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3333333334' to each side of the equation. -0.3333333334 + 0.3333333334 + x = 1.054092553 + 0.3333333334 Combine like terms: -0.3333333334 + 0.3333333334 = 0.0000000000 0.0000000000 + x = 1.054092553 + 0.3333333334 x = 1.054092553 + 0.3333333334 Combine like terms: 1.054092553 + 0.3333333334 = 1.3874258864 x = 1.3874258864 Simplifying x = 1.3874258864

Subproblem 2

x + -0.3333333334 = -1.054092553 Simplifying x + -0.3333333334 = -1.054092553 Reorder the terms: -0.3333333334 + x = -1.054092553 Solving -0.3333333334 + x = -1.054092553 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3333333334' to each side of the equation. -0.3333333334 + 0.3333333334 + x = -1.054092553 + 0.3333333334 Combine like terms: -0.3333333334 + 0.3333333334 = 0.0000000000 0.0000000000 + x = -1.054092553 + 0.3333333334 x = -1.054092553 + 0.3333333334 Combine like terms: -1.054092553 + 0.3333333334 = -0.7207592196 x = -0.7207592196 Simplifying x = -0.7207592196

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3874258864, -0.7207592196}

See similar equations:

| 7+a=24 | | -5+q=11 | | 2x(4-2)=2(7x+3) | | 6x^3+11x^2+4x-1=0 | | 4a^2=1152 | | 25y^2-81= | | 2n-3m-(2n+3m)= | | 20x+25y=11.50 | | f(x)=x^2+5x+6 | | 4p+25=(6p-3)-3(4-3p) | | -4(7a+2)=32 | | -104x=8x | | 0.5x+4.8=2.3 | | 12x+24=6x+147 | | (2x+1-x^2-7)= | | 10x+15=67-(x) | | (5/6)(7/18) | | 5/6/7/18 | | y=-0.028x^2+0.57x | | 6(x-4)=-5 | | 6x^2+2x=-7 | | -3y^2+26y+9=0 | | -8+2k=k-3k | | t=2x^2-x-3 | | (3/7)=((a-2)/6) | | 20x-10=16x+1+14 | | 2x-3/18-2x+1/6 | | (3/7)=(a-2/6) | | 2x^2+4x+4=40000 | | 8x-12=0 | | 5-x=4x+15 | | X+2x+(2x+2)=100 |

Equations solver categories