7x^2+6x+3=

Simple and best practice solution for 7x^2+6x+3= 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 7x^2+6x+3= equation:


Simplifying
7x2 + 6x + 3 = 0

Reorder the terms:
3 + 6x + 7x2 = 0

Solving
3 + 6x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
0.4285714286 + 0.8571428571x + x2 = 0

Move the constant term to the right:

Add '-0.4285714286' to each side of the equation.
0.4285714286 + 0.8571428571x + -0.4285714286 + x2 = 0 + -0.4285714286

Reorder the terms:
0.4285714286 + -0.4285714286 + 0.8571428571x + x2 = 0 + -0.4285714286

Combine like terms: 0.4285714286 + -0.4285714286 = 0.0000000000
0.0000000000 + 0.8571428571x + x2 = 0 + -0.4285714286
0.8571428571x + x2 = 0 + -0.4285714286

Combine like terms: 0 + -0.4285714286 = -0.4285714286
0.8571428571x + x2 = -0.4285714286

The x term is 0.8571428571x.  Take half its coefficient (0.4285714286).
Square it (0.1836734694) and add it to both sides.

Add '0.1836734694' to each side of the equation.
0.8571428571x + 0.1836734694 + x2 = -0.4285714286 + 0.1836734694

Reorder the terms:
0.1836734694 + 0.8571428571x + x2 = -0.4285714286 + 0.1836734694

Combine like terms: -0.4285714286 + 0.1836734694 = -0.2448979592
0.1836734694 + 0.8571428571x + x2 = -0.2448979592

Factor a perfect square on the left side:
(x + 0.4285714286)(x + 0.4285714286) = -0.2448979592

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| X-0.3=9.3 | | x+162=180 | | 30000.00x=-275000.00+45000.00x | | 30000.00x=350000.00 | | 30000.00x=350.000 | | 1=y-9 | | 8x^2=36 | | 5z-(13-2y)=59 | | -275000.00+45000.00x=0 | | -6w+8=6w+5 | | X-0.8=7.6 | | 40-n=3n-16 | | 6x+8.88=4x+12 | | (f+g)(x)-6x-1andg(x)=4x^2 | | -9-1=-6+x | | n+14+6n-52=32 | | 10-(8-Q)=20-2*Q | | -8x+7+9x=-23+21 | | -3-12=5x+16-4x | | 7x+17-6x=-4-11 | | 4n-20-7n+16-3=35 | | abs(5x-3)-9=0 | | 3x(3x-1)=30 | | -5(2x-2)=2(1-4x) | | 3u+2w=11 | | 7-3a=-2(-7+2a) | | 3n-5+6n-17=167 | | 2(1+7r)+5r=2+7r | | x^2=-24x | | -2-4a=6-a-3a | | -2-4a=6-a | | 6-7x=-7+6 |

Equations solver categories