0=x^2-31x+242

Simple and best practice solution for 0=x^2-31x+242 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^2-31x+242 equation:


Simplifying
0 = x2 + -31x + 242

Reorder the terms:
0 = 242 + -31x + x2

Solving
0 = 242 + -31x + x2

Solving for variable 'x'.

Combine like terms: 0 + -242 = -242
-242 + 31x + -1x2 = 242 + -31x + x2 + -242 + 31x + -1x2

Reorder the terms:
-242 + 31x + -1x2 = 242 + -242 + -31x + 31x + x2 + -1x2

Combine like terms: 242 + -242 = 0
-242 + 31x + -1x2 = 0 + -31x + 31x + x2 + -1x2
-242 + 31x + -1x2 = -31x + 31x + x2 + -1x2

Combine like terms: -31x + 31x = 0
-242 + 31x + -1x2 = 0 + x2 + -1x2
-242 + 31x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-242 + 31x + -1x2 = 0

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

Divide each side by '-1'.
242 + -31x + x2 = 0

Move the constant term to the right:

Add '-242' to each side of the equation.
242 + -31x + -242 + x2 = 0 + -242

Reorder the terms:
242 + -242 + -31x + x2 = 0 + -242

Combine like terms: 242 + -242 = 0
0 + -31x + x2 = 0 + -242
-31x + x2 = 0 + -242

Combine like terms: 0 + -242 = -242
-31x + x2 = -242

The x term is -31x.  Take half its coefficient (-15.5).
Square it (240.25) and add it to both sides.

Add '240.25' to each side of the equation.
-31x + 240.25 + x2 = -242 + 240.25

Reorder the terms:
240.25 + -31x + x2 = -242 + 240.25

Combine like terms: -242 + 240.25 = -1.75
240.25 + -31x + x2 = -1.75

Factor a perfect square on the left side:
(x + -15.5)(x + -15.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 37+15r=-12 | | 4.1+10m=7.52 | | 2x-4=21x-3 | | 4-2(x-7)=-x+1 | | 4x=1+6y | | x(a-x+b)=2b(x-b) | | 2q/3q | | 6(4x+9)=222 | | 20x-16=4-20x | | 3x-18=12x+10 | | 7(-3x+3)=42 | | -138=-12b-42 | | -5(-9+2x)=75 | | -5(6+2x)=-100 | | 7+3x+4x=0 | | y+2.4= | | 52=5x+3x+4 | | 5x+10-6x=21 | | X^2-16-18=0 | | 4x^2-25x+81=0 | | -10+x-5x=-34 | | 6n-6/10=2 | | F(x)=4x^2+16x+7 | | -4(2n^2-2n)=3(n+6) | | (6+54y)(5y-35)=0 | | xdy-ydx=2x | | L=1/7nv^2 | | 37+15x=17x | | 9=m(3m+1) | | 7y+22=9y | | 6d-3D+d-7-2d=0 | | Sin37=y/15 |

Equations solver categories