x^2+30x+109=0

Simple and best practice solution for x^2+30x+109=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+30x+109=0 equation:


Simplifying
x2 + 30x + 109 = 0

Reorder the terms:
109 + 30x + x2 = 0

Solving
109 + 30x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-109' to each side of the equation.
109 + 30x + -109 + x2 = 0 + -109

Reorder the terms:
109 + -109 + 30x + x2 = 0 + -109

Combine like terms: 109 + -109 = 0
0 + 30x + x2 = 0 + -109
30x + x2 = 0 + -109

Combine like terms: 0 + -109 = -109
30x + x2 = -109

The x term is 30x.  Take half its coefficient (15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
30x + 225 + x2 = -109 + 225

Reorder the terms:
225 + 30x + x2 = -109 + 225

Combine like terms: -109 + 225 = 116
225 + 30x + x2 = 116

Factor a perfect square on the left side:
(x + 15)(x + 15) = 116

Calculate the square root of the right side: 10.770329614

Break this problem into two subproblems by setting 
(x + 15) equal to 10.770329614 and -10.770329614.

Subproblem 1

x + 15 = 10.770329614 Simplifying x + 15 = 10.770329614 Reorder the terms: 15 + x = 10.770329614 Solving 15 + x = 10.770329614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 10.770329614 + -15 Combine like terms: 15 + -15 = 0 0 + x = 10.770329614 + -15 x = 10.770329614 + -15 Combine like terms: 10.770329614 + -15 = -4.229670386 x = -4.229670386 Simplifying x = -4.229670386

Subproblem 2

x + 15 = -10.770329614 Simplifying x + 15 = -10.770329614 Reorder the terms: 15 + x = -10.770329614 Solving 15 + x = -10.770329614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -10.770329614 + -15 Combine like terms: 15 + -15 = 0 0 + x = -10.770329614 + -15 x = -10.770329614 + -15 Combine like terms: -10.770329614 + -15 = -25.770329614 x = -25.770329614 Simplifying x = -25.770329614

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.229670386, -25.770329614}

See similar equations:

| 61/6-12/5 | | -21=3(u+2)+6u | | y+y+2=3 | | 2t+1=16 | | (8-12)-(-2-4)= | | 271-3x=42x+21 | | (11a+10b)=42 | | 2x+7+8=12x+4+9 | | 11a+10b=6a+18b | | u/2-7=-11 | | 6y-18=102 | | -4/9-(-7/9) | | 3+4u=23 | | 2x-9+2x-9+x+x+x=360 | | 4w+2=6 | | 4v^2+5v=6 | | 3x+2-3x+7x=15-19+2x | | -32=2u | | 2x-x+x-5=-1 | | d+14=-5 | | -57=-y/3 | | -39-10x=10x-21 | | x-2+1=x-2x-1 | | 15x^2+2=0 | | 8x+5y=170 | | e(x)-2=0 | | y=240+720 | | 4x^2-11x+4=0 | | ((x^3+3x^2)/(2x))*((5x^3)/(x^2+5x+6)) | | 4a-4=8+a | | 5x+1/x-1=8 | | 8/(x+2)+(8/2)=5 |

Equations solver categories