x^2+8x-10000=0

Simple and best practice solution for x^2+8x-10000=0 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^2+8x-10000=0 equation:


Simplifying
x2 + 8x + -10000 = 0

Reorder the terms:
-10000 + 8x + x2 = 0

Solving
-10000 + 8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '10000' to each side of the equation.
-10000 + 8x + 10000 + x2 = 0 + 10000

Reorder the terms:
-10000 + 10000 + 8x + x2 = 0 + 10000

Combine like terms: -10000 + 10000 = 0
0 + 8x + x2 = 0 + 10000
8x + x2 = 0 + 10000

Combine like terms: 0 + 10000 = 10000
8x + x2 = 10000

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 10000 + 16

Reorder the terms:
16 + 8x + x2 = 10000 + 16

Combine like terms: 10000 + 16 = 10016
16 + 8x + x2 = 10016

Factor a perfect square on the left side:
(x + 4)(x + 4) = 10016

Calculate the square root of the right side: 100.079968026

Break this problem into two subproblems by setting 
(x + 4) equal to 100.079968026 and -100.079968026.

Subproblem 1

x + 4 = 100.079968026 Simplifying x + 4 = 100.079968026 Reorder the terms: 4 + x = 100.079968026 Solving 4 + x = 100.079968026 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 100.079968026 + -4 Combine like terms: 4 + -4 = 0 0 + x = 100.079968026 + -4 x = 100.079968026 + -4 Combine like terms: 100.079968026 + -4 = 96.079968026 x = 96.079968026 Simplifying x = 96.079968026

Subproblem 2

x + 4 = -100.079968026 Simplifying x + 4 = -100.079968026 Reorder the terms: 4 + x = -100.079968026 Solving 4 + x = -100.079968026 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -100.079968026 + -4 Combine like terms: 4 + -4 = 0 0 + x = -100.079968026 + -4 x = -100.079968026 + -4 Combine like terms: -100.079968026 + -4 = -104.079968026 x = -104.079968026 Simplifying x = -104.079968026

Solution

The solution to the problem is based on the solutions from the subproblems. x = {96.079968026, -104.079968026}

See similar equations:

| 5=5+5a | | -3x+2=-x+8 | | 3-2a=5a+3 | | 4(2n-3)n=5 | | 149=-7n+9 | | 11(-4n-6)=-11(5+3n) | | 6(2x+4)=30 | | X^3+6x^2+9x+1=0 | | 9×2/3 | | x+-14=-30 | | 11x-9-6x=-2(x-3)-12(2x+9) | | 15X+4=3x+19 | | 10(9a+9)=10(9-8a) | | 9(k-2)=11(k-4) | | -3/4x3/5 | | 10=3+3p+4p | | (6-z)(5z-3)=0 | | -17=-8+x | | -15/10 | | -2p+5+4p=5 | | M^2-7m-1=0 | | 16x+16+4x^2=0 | | 25m^2=4 | | 2y+5=6(-1) | | (x-1)(2x+6)=9 | | T^2-40t+4=0 | | 32x^2•/x | | 8-2b-11=b+21 | | 2w-3x-y+6w+16x-5y= | | 4p-10=11+7p | | X-0.6=8.96 | | 9.2x-2.7=7.8-2.9x |

Equations solver categories