15x^2+2x+8=0

Simple and best practice solution for 15x^2+2x+8=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 15x^2+2x+8=0 equation:


Simplifying
15x2 + 2x + 8 = 0

Reorder the terms:
8 + 2x + 15x2 = 0

Solving
8 + 2x + 15x2 = 0

Solving for variable 'x'.

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

Divide each side by '15'.
0.5333333333 + 0.1333333333x + x2 = 0

Move the constant term to the right:

Add '-0.5333333333' to each side of the equation.
0.5333333333 + 0.1333333333x + -0.5333333333 + x2 = 0 + -0.5333333333

Reorder the terms:
0.5333333333 + -0.5333333333 + 0.1333333333x + x2 = 0 + -0.5333333333

Combine like terms: 0.5333333333 + -0.5333333333 = 0.0000000000
0.0000000000 + 0.1333333333x + x2 = 0 + -0.5333333333
0.1333333333x + x2 = 0 + -0.5333333333

Combine like terms: 0 + -0.5333333333 = -0.5333333333
0.1333333333x + x2 = -0.5333333333

The x term is 0.1333333333x.  Take half its coefficient (0.06666666665).
Square it (0.004444444442) and add it to both sides.

Add '0.004444444442' to each side of the equation.
0.1333333333x + 0.004444444442 + x2 = -0.5333333333 + 0.004444444442

Reorder the terms:
0.004444444442 + 0.1333333333x + x2 = -0.5333333333 + 0.004444444442

Combine like terms: -0.5333333333 + 0.004444444442 = -0.528888888858
0.004444444442 + 0.1333333333x + x2 = -0.528888888858

Factor a perfect square on the left side:
(x + 0.06666666665)(x + 0.06666666665) = -0.528888888858

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9(3x-7)-9(2x+9)=6 | | 6x^2+3x+2x=0 | | x=2*(180-x)+65 | | x-.08x=20000 | | x-0.8x=20000 | | 64=12.8h | | x-(.8x)=20000 | | log(x)+log(x-5)=log(36) | | 6=-3+39 | | -2a^2+3a=0 | | 2(8-5x)-(2x-6)=4 | | −1/4(−1−k)=5/4-​​23k​​/4 | | 4x^2-40x-64=0 | | (x+2)/3=5/x | | 3(2x-4)-5=3(x-5)+25 | | 2y^2+5=-7y | | 3y-2=10y+33 | | (x+8)/11=(4-x)/7 | | 3x-5=3(4-7x) | | 4(x^2-3x)+12x^2+x= | | 36v^4w^4/45v^5w^3 | | 2(9x-4)=23 | | 3x/2=35 | | 27+(-46)= | | n+(-16)=-32 | | h(t)=-16t^2+96t+75 | | X-(x*.035)=400.15 | | x^2+(x^2+8x+16)=64 | | x+27+x=247 | | 3x+7-4=24 | | 8x^2-18x-81=0 | | (8x^3+2x^2-5x+2)-(2x^4+5x^3+x-5)= |

Equations solver categories