x-x^2=130

Simple and best practice solution for x-x^2=130 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 x-x^2=130 equation:


Simplifying
x + -1x2 = 130

Solving
x + -1x2 = 130

Solving for variable 'x'.

Reorder the terms:
-130 + x + -1x2 = 130 + -130

Combine like terms: 130 + -130 = 0
-130 + x + -1x2 = 0

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

Divide each side by '-1'.
130 + -1x + x2 = 0

Move the constant term to the right:

Add '-130' to each side of the equation.
130 + -1x + -130 + x2 = 0 + -130

Reorder the terms:
130 + -130 + -1x + x2 = 0 + -130

Combine like terms: 130 + -130 = 0
0 + -1x + x2 = 0 + -130
-1x + x2 = 0 + -130

Combine like terms: 0 + -130 = -130
-1x + x2 = -130

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -130 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -130 + 0.25

Combine like terms: -130 + 0.25 = -129.75
0.25 + -1x + x2 = -129.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -129.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9x+11=4x+1 | | -5(n-5)+7(n+1)= | | 4(x-3)+2(x-1)= | | -10(a+3)+6a= | | 7c-15-5c+42= | | 12-2c=2whatisc | | 6(n+3)+2n= | | -7(y-11)= | | -5+6c-5c= | | 5(1+3x)=125 | | -3n+8+8n= | | 40h+25k+35= | | -8c+c= | | -3a+11a= | | 305=0.15x+16y | | 9=2y-(2y-9) | | 2(x+15)=16 | | 305=0.15y+16x | | (7x+3y)-(2x-3y)= | | 10m-8m= | | -12-15x=3 | | 6(6+3x)=54 | | 24x+24y= | | -4(r-4s-9t)= | | 19.6t^2-14t+8=0 | | 45(-11-32)=c | | x-5=2(23.5)+12 | | -8(2t+6)=-112 | | 16=y+2 | | 2(4x-2)=7x | | 8(s-10)=-124 | | 16a^2-24a+1=0 |

Equations solver categories