6x^2=-2x-7

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


Simplifying
6x2 = -2x + -7

Reorder the terms:
6x2 = -7 + -2x

Solving
6x2 = -7 + -2x

Solving for variable 'x'.

Reorder the terms:
7 + 2x + 6x2 = -7 + -2x + 7 + 2x

Reorder the terms:
7 + 2x + 6x2 = -7 + 7 + -2x + 2x

Combine like terms: -7 + 7 = 0
7 + 2x + 6x2 = 0 + -2x + 2x
7 + 2x + 6x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
7 + 2x + 6x2 = 0

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

Divide each side by '6'.
1.166666667 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '-1.166666667' to each side of the equation.
1.166666667 + 0.3333333333x + -1.166666667 + x2 = 0 + -1.166666667

Reorder the terms:
1.166666667 + -1.166666667 + 0.3333333333x + x2 = 0 + -1.166666667

Combine like terms: 1.166666667 + -1.166666667 = 0.000000000
0.000000000 + 0.3333333333x + x2 = 0 + -1.166666667
0.3333333333x + x2 = 0 + -1.166666667

Combine like terms: 0 + -1.166666667 = -1.166666667
0.3333333333x + x2 = -1.166666667

The x term is 0.3333333333x.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333x + 0.02777777779 + x2 = -1.166666667 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333x + x2 = -1.166666667 + 0.02777777779

Combine like terms: -1.166666667 + 0.02777777779 = -1.13888888921
0.02777777779 + 0.3333333333x + x2 = -1.13888888921

Factor a perfect square on the left side:
(x + 0.1666666667)(x + 0.1666666667) = -1.13888888921

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| (5x-12y)+(8y+7x)= | | 4(r+20)+4r=250 | | -9x=6x+30 | | 15x+x-16=153 | | 5x+2+8x-7=360 | | (2x+7)(3x-1)=0 | | -15=10+x | | 2/3(6x+3)=7x-4 | | 7x+13x+20=420 | | 6x+13=-5+9x | | 3(y+2)=4(5+y) | | -16t^2+30t+2=0 | | 2x(2x-14)=-49 | | 56.62=9.42h | | 2a=2a-9 | | 1/2(4x-18)=6x-9-4x | | 8(h-4)=7h+8 | | 10-4c=74 | | 3x^2-4x-y-1=0 | | 6x^2-8x-18=0 | | 3x-8x+70=4x+34 | | 5x-2=8+3x | | 35+20h=100 | | 5(5y+3)=30 | | 4x=-6x | | 15-x=60 | | 9x+3x-18=18 | | 23=5-9w | | 4*x=40 | | 36=18+a | | 6+(-12)=9+(-15) | | (1/2)x+13=35 |

Equations solver categories