3x-1-x^2=0

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


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

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

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

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

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

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:

| 8a+10=3x | | 5x+6x-2x=3x+-18+12+-6 | | 7-8x=5-3x | | 7(x+15)=3(x+4) | | 7(x+-3)=3(x+4) | | 7(x+-12)=3(x+4) | | 2x-1.5= | | 6x-y=-19 | | 1+2x-x=-5+x | | 8x+6-4x+6= | | 5+6(n+5)=-(-2+5n) | | 160=60+2.5f | | 3(X-4)+17=101 | | 6.2-8=29.2 | | (-4)-55= | | 2(2x+21)=x+13 | | 4-9r^2=-653 | | 30b+15=p | | x-15+2x+6= | | 5a-2a= | | x+6/x-5=-2 | | 5.3x+2.36=17.73 | | x+6/x-5=-1/2 | | 1-7n=3-7n | | 3(2x-10)=27 | | R(x)=x(90-4x) | | 150+7x=305 | | -3a-6=-30 | | -14+5-5-x-3=x+6+x+3x | | x+6/x-5=1/2 | | 0.5x-5.8=0.4x+2.5 | | (5x^3-2x)(3x^2+x-8)= |

Equations solver categories