7x^2+6x+4=0

Simple and best practice solution for 7x^2+6x+4=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 7x^2+6x+4=0 equation:


Simplifying
7x2 + 6x + 4 = 0

Reorder the terms:
4 + 6x + 7x2 = 0

Solving
4 + 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'.
0.5714285714 + 0.8571428571x + x2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + 0.8571428571x + -0.5714285714 + x2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + 0.8571428571x + x2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + 0.8571428571x + x2 = 0 + -0.5714285714
0.8571428571x + x2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
0.8571428571x + x2 = -0.5714285714

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 = -0.5714285714 + 0.1836734694

Reorder the terms:
0.1836734694 + 0.8571428571x + x2 = -0.5714285714 + 0.1836734694

Combine like terms: -0.5714285714 + 0.1836734694 = -0.387755102
0.1836734694 + 0.8571428571x + x2 = -0.387755102

Factor a perfect square on the left side:
(x + 0.4285714286)(x + 0.4285714286) = -0.387755102

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2(n+6)=-n | | .45+18n=441 | | 9h-3h=15 | | 2(3x+6)+4(4x+5)+3=22x+36 | | 4x^2+120=120 | | x^2+14x=1715 | | 3x=4+3x+x | | 5u^2-9u+2=0 | | 2*A+A^2=0.1 | | 9x=-10 | | 7N-10-9=-13 | | 4x+11=6x-1 | | 8n-10-12n=18 | | -4(-6x+7)=116 | | 249+0.99m=278 | | 10x^2+17x-63=0 | | 1.2x-3.6=2.4+1.8x | | x+15(57)+2.0= | | 2y+4(2)=8 | | 12b=28 | | 3(1+c)=2(c-6) | | 6x-3=2x^2 | | 5-2n=3-n | | 5t-(2T+14)=3T-14 | | 3(-6)+6(-6)=3-9 | | 14+2(11-h)=-5 | | -2(4b+2)+(9b-4)=0 | | 4t^2-25t+6=0 | | 5(-x-5)=-30 | | -1550-7x=1718 | | 3(x+4)=5x+16 | | 6h-117=-21 |

Equations solver categories