-3x^2+-x=-3

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


Simplifying
-3x2 + -1x = -3

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

Solving
-1x + -3x2 = -3

Solving for variable 'x'.

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

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

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

Divide each side by '-3'.
-1 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 0.3333333333x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 0.3333333333x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 0.3333333333x + x2 = 0 + 1
0.3333333333x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
0.3333333333x + x2 = 1

The x term is 0.3333333333x.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333x + 0.02777777779 + x2 = 1 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333x + x2 = 1 + 0.02777777779

Combine like terms: 1 + 0.02777777779 = 1.02777777779
0.02777777779 + 0.3333333333x + x2 = 1.02777777779

Factor a perfect square on the left side:
(x + 0.1666666667)(x + 0.1666666667) = 1.02777777779

Calculate the square root of the right side: 1.013793755

Break this problem into two subproblems by setting 
(x + 0.1666666667) equal to 1.013793755 and -1.013793755.

Subproblem 1

x + 0.1666666667 = 1.013793755 Simplifying x + 0.1666666667 = 1.013793755 Reorder the terms: 0.1666666667 + x = 1.013793755 Solving 0.1666666667 + x = 1.013793755 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = 1.013793755 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = 1.013793755 + -0.1666666667 x = 1.013793755 + -0.1666666667 Combine like terms: 1.013793755 + -0.1666666667 = 0.8471270883 x = 0.8471270883 Simplifying x = 0.8471270883

Subproblem 2

x + 0.1666666667 = -1.013793755 Simplifying x + 0.1666666667 = -1.013793755 Reorder the terms: 0.1666666667 + x = -1.013793755 Solving 0.1666666667 + x = -1.013793755 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = -1.013793755 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = -1.013793755 + -0.1666666667 x = -1.013793755 + -0.1666666667 Combine like terms: -1.013793755 + -0.1666666667 = -1.1804604217 x = -1.1804604217 Simplifying x = -1.1804604217

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8471270883, -1.1804604217}

See similar equations:

| 6b+2b=-21 | | 2x^2-9x=-9 | | 6(4o-0)=(-36) | | 4cos^2(x)-cos(3x)=0 | | -8x^2=-7-26x | | (-8)(c-15)=(-96)-4c | | 3n-6+1=10 | | 5x+-17=33 | | 6+(-14)= | | 5x+17=33 | | -13x-12=-4x^2 | | 2/5=w/34 | | 5(6x+4)=260 | | x^2-48=8x | | 5(6x-8)=110 | | (-0.5)(d-1.5)=2.5 | | 8(5x+9)=272 | | cos(z)=-5 | | v^3+4v^2-4v=0 | | 4000=50x+250 | | 8(7x-17)=424 | | 3x-5+2x=5x-5 | | 3h-2=28 | | 6(6x+14)=408 | | -42=-14k | | 4x-3=5y+1 | | -21=-1+p | | 10(9x-18)=360 | | 2x-8=2x-9 | | 3h=60 | | k/20=-17 | | 6x^2+16x-12=0 |

Equations solver categories