x^2+20x=-33

Simple and best practice solution for x^2+20x=-33 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+20x=-33 equation:


Simplifying
x2 + 20x = -33

Reorder the terms:
20x + x2 = -33

Solving
20x + x2 = -33

Solving for variable 'x'.

Reorder the terms:
33 + 20x + x2 = -33 + 33

Combine like terms: -33 + 33 = 0
33 + 20x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-33' to each side of the equation.
33 + 20x + -33 + x2 = 0 + -33

Reorder the terms:
33 + -33 + 20x + x2 = 0 + -33

Combine like terms: 33 + -33 = 0
0 + 20x + x2 = 0 + -33
20x + x2 = 0 + -33

Combine like terms: 0 + -33 = -33
20x + x2 = -33

The x term is 20x.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20x + 100 + x2 = -33 + 100

Reorder the terms:
100 + 20x + x2 = -33 + 100

Combine like terms: -33 + 100 = 67
100 + 20x + x2 = 67

Factor a perfect square on the left side:
(x + 10)(x + 10) = 67

Calculate the square root of the right side: 8.185352772

Break this problem into two subproblems by setting 
(x + 10) equal to 8.185352772 and -8.185352772.

Subproblem 1

x + 10 = 8.185352772 Simplifying x + 10 = 8.185352772 Reorder the terms: 10 + x = 8.185352772 Solving 10 + x = 8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 8.185352772 + -10 Combine like terms: 10 + -10 = 0 0 + x = 8.185352772 + -10 x = 8.185352772 + -10 Combine like terms: 8.185352772 + -10 = -1.814647228 x = -1.814647228 Simplifying x = -1.814647228

Subproblem 2

x + 10 = -8.185352772 Simplifying x + 10 = -8.185352772 Reorder the terms: 10 + x = -8.185352772 Solving 10 + x = -8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -8.185352772 + -10 Combine like terms: 10 + -10 = 0 0 + x = -8.185352772 + -10 x = -8.185352772 + -10 Combine like terms: -8.185352772 + -10 = -18.185352772 x = -18.185352772 Simplifying x = -18.185352772

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.814647228, -18.185352772}

See similar equations:

| 5(x+1)=3(2x-4) | | 20x=3.25 | | 54/14 | | 18x=12x+30 | | 3n-wn=n | | 26n-23=-20 | | 9y-2=4y+24 | | s^2+8s-11=0 | | 3f+4+2f+3=12 | | 6r^2-42r+60=r^2-6r+8 | | 8.6t-2.1=21.98 | | j^2-2j-13=0 | | -5=2x+33 | | f^2-22f=23 | | 10x*10x=11 | | 3.2y+9.64=5.80 | | y^2+26y=3 | | 4/9(2/5b-3/8 | | 7.2a+9.29=-2.23 | | g^2-28g+43=0 | | 3z=16-40 | | 37=2(v+5)-5v | | w^2+22w=-25 | | h^2-24h+1=0 | | (2/3x-2/9)(20x-2)=0 | | 6.6x=23.76 | | 2x^2+2y=4x+2x^2-7 | | 4(18-y)+2y=52 | | (2/3x)(20x-2)=0 | | -b+-4.38=-8.38 | | v^2-10v+9=0 | | -8=-6x+4(x-6) |

Equations solver categories