0=x^2-140x-10500

Simple and best practice solution for 0=x^2-140x-10500 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^2-140x-10500 equation:


Simplifying
0 = x2 + -140x + -10500

Reorder the terms:
0 = -10500 + -140x + x2

Solving
0 = -10500 + -140x + x2

Solving for variable 'x'.

Combine like terms: 0 + 10500 = 10500
10500 + 140x + -1x2 = -10500 + -140x + x2 + 10500 + 140x + -1x2

Reorder the terms:
10500 + 140x + -1x2 = -10500 + 10500 + -140x + 140x + x2 + -1x2

Combine like terms: -10500 + 10500 = 0
10500 + 140x + -1x2 = 0 + -140x + 140x + x2 + -1x2
10500 + 140x + -1x2 = -140x + 140x + x2 + -1x2

Combine like terms: -140x + 140x = 0
10500 + 140x + -1x2 = 0 + x2 + -1x2
10500 + 140x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
10500 + 140x + -1x2 = 0

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

Divide each side by '-1'.
-10500 + -140x + x2 = 0

Move the constant term to the right:

Add '10500' to each side of the equation.
-10500 + -140x + 10500 + x2 = 0 + 10500

Reorder the terms:
-10500 + 10500 + -140x + x2 = 0 + 10500

Combine like terms: -10500 + 10500 = 0
0 + -140x + x2 = 0 + 10500
-140x + x2 = 0 + 10500

Combine like terms: 0 + 10500 = 10500
-140x + x2 = 10500

The x term is -140x.  Take half its coefficient (-70).
Square it (4900) and add it to both sides.

Add '4900' to each side of the equation.
-140x + 4900 + x2 = 10500 + 4900

Reorder the terms:
4900 + -140x + x2 = 10500 + 4900

Combine like terms: 10500 + 4900 = 15400
4900 + -140x + x2 = 15400

Factor a perfect square on the left side:
(x + -70)(x + -70) = 15400

Calculate the square root of the right side: 124.09673646

Break this problem into two subproblems by setting 
(x + -70) equal to 124.09673646 and -124.09673646.

Subproblem 1

x + -70 = 124.09673646 Simplifying x + -70 = 124.09673646 Reorder the terms: -70 + x = 124.09673646 Solving -70 + x = 124.09673646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '70' to each side of the equation. -70 + 70 + x = 124.09673646 + 70 Combine like terms: -70 + 70 = 0 0 + x = 124.09673646 + 70 x = 124.09673646 + 70 Combine like terms: 124.09673646 + 70 = 194.09673646 x = 194.09673646 Simplifying x = 194.09673646

Subproblem 2

x + -70 = -124.09673646 Simplifying x + -70 = -124.09673646 Reorder the terms: -70 + x = -124.09673646 Solving -70 + x = -124.09673646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '70' to each side of the equation. -70 + 70 + x = -124.09673646 + 70 Combine like terms: -70 + 70 = 0 0 + x = -124.09673646 + 70 x = -124.09673646 + 70 Combine like terms: -124.09673646 + 70 = -54.09673646 x = -54.09673646 Simplifying x = -54.09673646

Solution

The solution to the problem is based on the solutions from the subproblems. x = {194.09673646, -54.09673646}

See similar equations:

| 3b+14/3=4 | | 10-4x+11=13 | | 2x*10=100 | | x^2y= | | v^2+64=-16v | | 30=-6-9x | | 7+6x=49 | | 1/8(x+4)=2x-3(4-x)-7 | | 4w-3x-y+2w+18x-4y= | | 4x-7y=0 | | 0.1x^3-0.2749x^2-0.6598-1.3772=0 | | 3x1/8 | | -34=17-x | | y=-1/4x+5/3 | | 7-9x=3*(x+1) | | -3/3m+7=19 | | -4(n+4)=-3n-7 | | -3x-4y=-16 | | 11.4x+4y=0 | | X^2+8x+1=5x+5 | | 5-8x=81-22x | | 90-(50-1)= | | 36y^2+36y+9=0 | | 2x+10=3j+9 | | X^2-7x+13=3 | | 6x(x-1)=25-11x | | 4-x=4y | | 50x=10y+8 | | r^3-9r^2+20r=0 | | n/3+5=7 | | d/5.8+12=-11.2 | | x^5-8x^4+8x-64=0 |

Equations solver categories