8x^2=-3-6x

Simple and best practice solution for 8x^2=-3-6x 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 8x^2=-3-6x equation:


Simplifying
8x2 = -3 + -6x

Solving
8x2 = -3 + -6x

Solving for variable 'x'.

Reorder the terms:
3 + 6x + 8x2 = -3 + -6x + 3 + 6x

Reorder the terms:
3 + 6x + 8x2 = -3 + 3 + -6x + 6x

Combine like terms: -3 + 3 = 0
3 + 6x + 8x2 = 0 + -6x + 6x
3 + 6x + 8x2 = -6x + 6x

Combine like terms: -6x + 6x = 0
3 + 6x + 8x2 = 0

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

Divide each side by '8'.
0.375 + 0.75x + x2 = 0

Move the constant term to the right:

Add '-0.375' to each side of the equation.
0.375 + 0.75x + -0.375 + x2 = 0 + -0.375

Reorder the terms:
0.375 + -0.375 + 0.75x + x2 = 0 + -0.375

Combine like terms: 0.375 + -0.375 = 0.000
0.000 + 0.75x + x2 = 0 + -0.375
0.75x + x2 = 0 + -0.375

Combine like terms: 0 + -0.375 = -0.375
0.75x + x2 = -0.375

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = -0.375 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = -0.375 + 0.140625

Combine like terms: -0.375 + 0.140625 = -0.234375
0.140625 + 0.75x + x2 = -0.234375

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = -0.234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 30x-15=y | | 2c+2-c=20 | | 2(x-8)=x-15 | | 4q+2=5q-6 | | 20x^2-39x+80=09 | | 10x-x-75=33 | | 5(2c*7)-3c=7(c+5) | | 11-y-11=19-11 | | -2x^2-3x-9=-5 | | 4x-13=-7x+9 | | 3w+7=5w-9 | | 4x+1=9x-14 | | 3n-11=2n-4 | | 4x^2-7x+7=0 | | -2v-2v=-12 | | 2.4+10m=7.67 | | 4n=(-8)+3n | | 8x+x-149=49 | | 2*2t-3+t=12-t | | y=25x+1 | | 100+0.20x=70+0.70x | | -7t-4=-7t+10 | | 2x-18+2=y | | 2x+4x+1=19 | | 5a+(-12-9a)=3-(7a+3) | | -110-3x+9x=58 | | 2x+32=11x-4 | | 0.70x+0.25(70)=0.35(104) | | -8-7x+2x=-8 | | 3t+2=2t+5 | | 25x^3-15x^2+60x=0 | | 3x^2=-4x-4 |

Equations solver categories