-1.25x^2-450x+72000=112500

Simple and best practice solution for -1.25x^2-450x+72000=112500 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 -1.25x^2-450x+72000=112500 equation:


Simplifying
-1.25x2 + -450x + 72000 = 112500

Reorder the terms:
72000 + -450x + -1.25x2 = 112500

Solving
72000 + -450x + -1.25x2 = 112500

Solving for variable 'x'.

Reorder the terms:
72000 + -112500 + -450x + -1.25x2 = 112500 + -112500

Combine like terms: 72000 + -112500 = -40500
-40500 + -450x + -1.25x2 = 112500 + -112500

Combine like terms: 112500 + -112500 = 0
-40500 + -450x + -1.25x2 = 0

Begin completing the square.  Divide all terms by
-1.25 the coefficient of the squared term: 

Divide each side by '-1.25'.
32400 + 360x + x2 = 0

Move the constant term to the right:

Add '-32400' to each side of the equation.
32400 + 360x + -32400 + x2 = 0 + -32400

Reorder the terms:
32400 + -32400 + 360x + x2 = 0 + -32400

Combine like terms: 32400 + -32400 = 0
0 + 360x + x2 = 0 + -32400
360x + x2 = 0 + -32400

Combine like terms: 0 + -32400 = -32400
360x + x2 = -32400

The x term is 360x.  Take half its coefficient (180).
Square it (32400) and add it to both sides.

Add '32400' to each side of the equation.
360x + 32400 + x2 = -32400 + 32400

Reorder the terms:
32400 + 360x + x2 = -32400 + 32400

Combine like terms: -32400 + 32400 = 0
32400 + 360x + x2 = 0

Factor a perfect square on the left side:
(x + 180)(x + 180) = 0

Calculate the square root of the right side: 0

Break this problem into two subproblems by setting 
(x + 180) equal to 0 and 0.

Subproblem 1

x + 180 = 0 Simplifying x + 180 = 0 Reorder the terms: 180 + x = 0 Solving 180 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-180' to each side of the equation. 180 + -180 + x = 0 + -180 Combine like terms: 180 + -180 = 0 0 + x = 0 + -180 x = 0 + -180 Combine like terms: 0 + -180 = -180 x = -180 Simplifying x = -180

Subproblem 2

x + 180 = 0 Simplifying x + 180 = 0 Reorder the terms: 180 + x = 0 Solving 180 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-180' to each side of the equation. 180 + -180 + x = 0 + -180 Combine like terms: 180 + -180 = 0 0 + x = 0 + -180 x = 0 + -180 Combine like terms: 0 + -180 = -180 x = -180 Simplifying x = -180

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-180, -180}

See similar equations:

| 5xy-8x+y=17 | | 5(-2x+7)=5(6x+2) | | 1q+4q-15q-2q+4q=14 | | 2/7x=30 | | 2(-2x-6)=2(-8x-5) | | 2x-12+3x=123 | | 2b+5b-6b=9 | | 4(x+5)=(3x)3 | | 10x^2=-4x-5 | | 5/6x=75 | | 38=10-2b | | 12g-8g-g-3g+g=16 | | 36-48x-12x^2=0 | | (5/6)x=6 | | 6x+-4= | | 2(4-y)-(y+2)=28 | | 6(x+1)=4(1+.25x)+6+3x | | 60x+179x=240 | | 3x-8=116 | | 919*4= | | 6.5=m/4 | | -3(-4y-6)=-78 | | 12x-10x+5x=-18 | | f(1/4) | | 2n^2-2=-3n | | -7+2x=10 | | 9x+2=2(x+2)-9 | | y-4.59=6.12 | | 3r-2r-r+r=20 | | 33+66= | | 12w+3w-14w=12 | | 32x+48x=48 |

Equations solver categories