x^2+100x-700=0

Simple and best practice solution for x^2+100x-700=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+100x-700=0 equation:


Simplifying
x2 + 100x + -700 = 0

Reorder the terms:
-700 + 100x + x2 = 0

Solving
-700 + 100x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '700' to each side of the equation.
-700 + 100x + 700 + x2 = 0 + 700

Reorder the terms:
-700 + 700 + 100x + x2 = 0 + 700

Combine like terms: -700 + 700 = 0
0 + 100x + x2 = 0 + 700
100x + x2 = 0 + 700

Combine like terms: 0 + 700 = 700
100x + x2 = 700

The x term is 100x.  Take half its coefficient (50).
Square it (2500) and add it to both sides.

Add '2500' to each side of the equation.
100x + 2500 + x2 = 700 + 2500

Reorder the terms:
2500 + 100x + x2 = 700 + 2500

Combine like terms: 700 + 2500 = 3200
2500 + 100x + x2 = 3200

Factor a perfect square on the left side:
(x + 50)(x + 50) = 3200

Calculate the square root of the right side: 56.568542495

Break this problem into two subproblems by setting 
(x + 50) equal to 56.568542495 and -56.568542495.

Subproblem 1

x + 50 = 56.568542495 Simplifying x + 50 = 56.568542495 Reorder the terms: 50 + x = 56.568542495 Solving 50 + x = 56.568542495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + x = 56.568542495 + -50 Combine like terms: 50 + -50 = 0 0 + x = 56.568542495 + -50 x = 56.568542495 + -50 Combine like terms: 56.568542495 + -50 = 6.568542495 x = 6.568542495 Simplifying x = 6.568542495

Subproblem 2

x + 50 = -56.568542495 Simplifying x + 50 = -56.568542495 Reorder the terms: 50 + x = -56.568542495 Solving 50 + x = -56.568542495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + x = -56.568542495 + -50 Combine like terms: 50 + -50 = 0 0 + x = -56.568542495 + -50 x = -56.568542495 + -50 Combine like terms: -56.568542495 + -50 = -106.568542495 x = -106.568542495 Simplifying x = -106.568542495

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.568542495, -106.568542495}

See similar equations:

| 8-4(x-3)=3(x-1) | | 9x-10=5x+5 | | 2=4x+0 | | 38=3f-7 | | 15.75inches=m | | 4(5x-7)=112 | | 2x-3=17e | | 3x^2+14x+10=8 | | -188=-3x-7(2x+5) | | 17x/4-3x=10 | | 426/7u | | 30bc/12b^2 | | 36-8p=-5(2p-6) | | 6(1/27)^4/x=18 | | 12x-4=2x+32 | | 2(x+4)+1-5x=(3-1-x)+7 | | -3(6+8a)=33-7a | | 5(x+3)+x=4(x-3)+3 | | 2x+78=11x-48 | | 5x/y^2*2y/7x | | 36xy+6x+6y+1=143 | | =(e^5x)*(e^10x) | | 3y-x+9=0 | | (x^6+16x^3+64)(x^3+8)=0 | | k=18-x^2-2 | | 4x-6=-2x-1 | | 226-u=287 | | 41-6x=14-9x | | -(x+m)=3(x+9)-10 | | 170=32-y | | 8(0)-2y=-8 | | (-36x^2)+(96x)-36=0 |

Equations solver categories