x+6x^2+15=0

Simple and best practice solution for x+6x^2+15=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+6x^2+15=0 equation:


Simplifying
x + 6x2 + 15 = 0

Reorder the terms:
15 + x + 6x2 = 0

Solving
15 + x + 6x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
2.5 + 0.1666666667x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + 0.1666666667x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + 0.1666666667x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + 0.1666666667x + x2 = 0 + -2.5
0.1666666667x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
0.1666666667x + x2 = -2.5

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.
0.1666666667x + 0.25 + x2 = -2.5 + 0.25

Reorder the terms:
0.25 + 0.1666666667x + x2 = -2.5 + 0.25

Combine like terms: -2.5 + 0.25 = -2.25
0.25 + 0.1666666667x + x2 = -2.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -2.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4u-8=-32 | | 0.03y-2.3=0.7 | | 4/5×-1/4 | | 4u-8=32 | | 4.6X+57.3=7.8-11.9X | | 0.04x+-1.9=0.1 | | (7i)/(6-3i) | | 0.04-1.9=0.1 | | 20*9*1/6 | | 3x^2+x=30x+10 | | 7+11N-5=8N+9-4N | | 3x^3+18x^2=3x+18 | | 7i/(6-3i) | | 5x^2=16x-3 | | 4/1*8/11 | | 8/3=4w | | f(x)=3cos(3x)-3 | | (2x-3)(4x-7)= | | -4X-16=-88 | | xy+4=0 | | 4r=5-6 | | x^2+71x+72= | | 3z-15=-60+8z | | 0.0.6m-4.4-4.8m=2.4 | | 5u-13=32 | | 6x+8=2x+40 | | 2x+2(x+4.25)=136.5 | | -x+5y=22 | | 2x+5z=3+3y | | 0.05d-0.3d-17=14 | | 5t-18=-4+3t | | 3/4x4/5= |

Equations solver categories