x^2+27x+31=

Simple and best practice solution for x^2+27x+31= 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+27x+31= equation:


Simplifying
x2 + 27x + 31 = 0

Reorder the terms:
31 + 27x + x2 = 0

Solving
31 + 27x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-31' to each side of the equation.
31 + 27x + -31 + x2 = 0 + -31

Reorder the terms:
31 + -31 + 27x + x2 = 0 + -31

Combine like terms: 31 + -31 = 0
0 + 27x + x2 = 0 + -31
27x + x2 = 0 + -31

Combine like terms: 0 + -31 = -31
27x + x2 = -31

The x term is 27x.  Take half its coefficient (13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
27x + 182.25 + x2 = -31 + 182.25

Reorder the terms:
182.25 + 27x + x2 = -31 + 182.25

Combine like terms: -31 + 182.25 = 151.25
182.25 + 27x + x2 = 151.25

Factor a perfect square on the left side:
(x + 13.5)(x + 13.5) = 151.25

Calculate the square root of the right side: 12.298373876

Break this problem into two subproblems by setting 
(x + 13.5) equal to 12.298373876 and -12.298373876.

Subproblem 1

x + 13.5 = 12.298373876 Simplifying x + 13.5 = 12.298373876 Reorder the terms: 13.5 + x = 12.298373876 Solving 13.5 + x = 12.298373876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = 12.298373876 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = 12.298373876 + -13.5 x = 12.298373876 + -13.5 Combine like terms: 12.298373876 + -13.5 = -1.201626124 x = -1.201626124 Simplifying x = -1.201626124

Subproblem 2

x + 13.5 = -12.298373876 Simplifying x + 13.5 = -12.298373876 Reorder the terms: 13.5 + x = -12.298373876 Solving 13.5 + x = -12.298373876 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = -12.298373876 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = -12.298373876 + -13.5 x = -12.298373876 + -13.5 Combine like terms: -12.298373876 + -13.5 = -25.798373876 x = -25.798373876 Simplifying x = -25.798373876

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.201626124, -25.798373876}

See similar equations:

| H=1/3(a+2p+3) | | y=-0.8x^2 | | 14x^8-13x^6+17x^5= | | 30x^2+27+6= | | 9x^2+73x+8= | | 6x^2-60x+96= | | 24x^4+78x^3+60x^2= | | 5/2-3/6=5/4+3/4 | | 5/2-x/6=5/4+x/4 | | 9x^2-2x+2= | | -4(5y-9)+2(2y+5)= | | 2x^2-30x+20= | | 49v^2+69v+25= | | -2-(2-2p)= | | 45x^3+48x^2+12x= | | -5y=4x | | 4g+g=15 | | 3y^2-5y^3-5y^2+7y^3= | | 10y^3-25y^2-125y= | | 4.2x-3=-9.3 | | 2/9x-2=-4 | | 3/2x+3=0 | | 12x^3-121x^2-121x= | | 1/6x+7=-6 | | -28=-7(-5+n) | | 8x-4=10(x+1) | | (9x-5)-2(4x+4)=-7 | | 0=3-3x | | 8=9-x | | 2/3.6+1.7 | | -7(3+5x)=-21-x | | -8+7a=-4(4a+2) |

Equations solver categories