500x-x^2=80

Simple and best practice solution for 500x-x^2=80 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 500x-x^2=80 equation:


Simplifying
500x + -1x2 = 80

Solving
500x + -1x2 = 80

Solving for variable 'x'.

Reorder the terms:
-80 + 500x + -1x2 = 80 + -80

Combine like terms: 80 + -80 = 0
-80 + 500x + -1x2 = 0

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

Divide each side by '-1'.
80 + -500x + x2 = 0

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + -500x + -80 + x2 = 0 + -80

Reorder the terms:
80 + -80 + -500x + x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -500x + x2 = 0 + -80
-500x + x2 = 0 + -80

Combine like terms: 0 + -80 = -80
-500x + x2 = -80

The x term is -500x.  Take half its coefficient (-250).
Square it (62500) and add it to both sides.

Add '62500' to each side of the equation.
-500x + 62500 + x2 = -80 + 62500

Reorder the terms:
62500 + -500x + x2 = -80 + 62500

Combine like terms: -80 + 62500 = 62420
62500 + -500x + x2 = 62420

Factor a perfect square on the left side:
(x + -250)(x + -250) = 62420

Calculate the square root of the right side: 249.839948767

Break this problem into two subproblems by setting 
(x + -250) equal to 249.839948767 and -249.839948767.

Subproblem 1

x + -250 = 249.839948767 Simplifying x + -250 = 249.839948767 Reorder the terms: -250 + x = 249.839948767 Solving -250 + x = 249.839948767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = 249.839948767 + 250 Combine like terms: -250 + 250 = 0 0 + x = 249.839948767 + 250 x = 249.839948767 + 250 Combine like terms: 249.839948767 + 250 = 499.839948767 x = 499.839948767 Simplifying x = 499.839948767

Subproblem 2

x + -250 = -249.839948767 Simplifying x + -250 = -249.839948767 Reorder the terms: -250 + x = -249.839948767 Solving -250 + x = -249.839948767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = -249.839948767 + 250 Combine like terms: -250 + 250 = 0 0 + x = -249.839948767 + 250 x = -249.839948767 + 250 Combine like terms: -249.839948767 + 250 = 0.160051233 x = 0.160051233 Simplifying x = 0.160051233

Solution

The solution to the problem is based on the solutions from the subproblems. x = {499.839948767, 0.160051233}

See similar equations:

| 8c-4c=8 | | -16-3+25-37=-6-3m-6+4m | | 8(6x+5)=120 | | z+4z=20 | | 13p+6p-9p=10 | | 15x^3-10x^2+25x= | | g+14=395 | | 3x+6=c | | n-1.4=-1.63 | | 6p-5p=-9+14 | | 16i+5=30i-3 | | 3[6-(-4x-7)]=60x+123 | | 50+25x=225 | | 19h-18h=11 | | -1+4=y-1 | | (5x+20)(9x-3)=0 | | 10m^2-2=78 | | X/100=3/8 | | 72x+85y-6(10x+12y)= | | a^3+6c= | | 51x^-4y^6/17x^2y^-2 | | -6=-1+t | | 12x^4-15x^3+9x= | | 2+8v=6v+10 | | 13v-11v-v-1=5 | | 2(x+4)+4=2x+12 | | X/105=3/4 | | z-15=-44 | | -6(x+7)=4x-2 | | 5a+2b+4a+5b= | | 7x+9-3(x+1)=9x+8 | | 3c+2c-3c-c=7 |

Equations solver categories