0=-x^2+3x-1

Simple and best practice solution for 0=-x^2+3x-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 0=-x^2+3x-1 equation:


Simplifying
0 = -1x2 + 3x + -1

Reorder the terms:
0 = -1 + 3x + -1x2

Solving
0 = -1 + 3x + -1x2

Solving for variable 'x'.

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

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

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

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

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

Begin completing the square.

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -3x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -3x + x2 = 0 + -1

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

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

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = -1 + 2.25

Reorder the terms:
2.25 + -3x + x2 = -1 + 2.25

Combine like terms: -1 + 2.25 = 1.25
2.25 + -3x + x2 = 1.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 1.25

Calculate the square root of the right side: 1.118033989

Break this problem into two subproblems by setting 
(x + -1.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

x + -1.5 = 1.118033989 Simplifying x + -1.5 = 1.118033989 Reorder the terms: -1.5 + x = 1.118033989 Solving -1.5 + x = 1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.118033989 + 1.5 x = 1.118033989 + 1.5 Combine like terms: 1.118033989 + 1.5 = 2.618033989 x = 2.618033989 Simplifying x = 2.618033989

Subproblem 2

x + -1.5 = -1.118033989 Simplifying x + -1.5 = -1.118033989 Reorder the terms: -1.5 + x = -1.118033989 Solving -1.5 + x = -1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.118033989 + 1.5 x = -1.118033989 + 1.5 Combine like terms: -1.118033989 + 1.5 = 0.381966011 x = 0.381966011 Simplifying x = 0.381966011

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.618033989, 0.381966011}

See similar equations:

| 7(x+2)=-6+2x | | 2(x^2-62x+368)=0 | | x^2-3x=171 | | (x+y+1)*dx+(2*x+2*y+1)*dy=0 | | 13-b/6=2-o.5b/4 | | 2(2x+9)=4x-5 | | X=x^3+6x^2+5x-12 | | 2(x-3)-x-x=9 | | x^2-62x+368=0 | | 6/13i | | ydx+(2x-xy+2)dy=0 | | 2b^2-2b-60=0 | | -8-x=-3x-2 | | 3x+18+9x-27=99 | | 3x+18+9x-27=00 | | 2x+9=-31-6x | | x+23+x+23=-6 | | 145+10n=115+15n | | -50+16y+4=4(5y-5)-5 | | b=8u^2v | | 4n+(-5)=-29 | | 10(c-5)+9=3+c-44 | | 3p+6q=p-3q | | x^2-3x-130= | | 8x+3y=3500 | | 3/-4=x/-16 | | 2b+a=20 | | 738=78+30m | | C=4c^2+d | | 610=64+26m | | 99-4s-6s=-5 | | 4.9x+4.4=19.9 |

Equations solver categories