x^2+x+16=0

Simple and best practice solution for x^2+x+16=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+x+16=0 equation:


Simplifying
x2 + x + 16 = 0

Reorder the terms:
16 + x + x2 = 0

Solving
16 + x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + x + -16 + x2 = 0 + -16

Reorder the terms:
16 + -16 + x + x2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + x + x2 = 0 + -16
x + x2 = 0 + -16

Combine like terms: 0 + -16 = -16
x + x2 = -16

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = -16 + 0.25

Reorder the terms:
0.25 + x + x2 = -16 + 0.25

Combine like terms: -16 + 0.25 = -15.75
0.25 + x + x2 = -15.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -15.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6(3x+2)=-60 | | 1/2+3/20 | | 5/4x+26-12=36 | | 7(5x+8)=-84 | | 1/5+7/30 | | 3(x+2)+x=6+4x | | x/4-3=-2x | | 4(3x-5)=88 | | 9/20+2/15 | | 2(4)(3)(-1)-4(-3)/3(5)(4)+4(-3) | | 5/4x+26-12=-6 | | 5n+1=5n+7 | | 2.2x-3+x-1.2= | | (3x+6)=42 | | 15n-1=5n+11 | | 2x^2+11x+51=0 | | Ix-5I=-5 | | X^3/2=343 | | 8x-(5-3x)=61 | | 7.68/2.4 | | x^4-12x^2+30=0 | | 2.1x-2.6+x-4.1= | | 10t+25f=1300 | | f(x)=-0.01x^2+0.7x+6.3 | | (6x^2+4)-(4x^2-3)=31 | | -3x-2(x-1)=3(x-4) | | 10x^2-17x=-7 | | (x^2+x+1)*(x^2-x-7)=65 | | (b^2+3b-4)(3b-6)= | | m+9=m/2-3 | | y=-x^2+3x-1 | | 2x-3(x-1)=4(x-3) |

Equations solver categories