5x^2+6*x+20=0

Simple and best practice solution for 5x^2+6*x+20=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 5x^2+6*x+20=0 equation:


Simplifying
5x2 + 6x + 20 = 0

Reorder the terms:
20 + 6x + 5x2 = 0

Solving
20 + 6x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
4 + 1.2x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 1.2x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + 1.2x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 1.2x + x2 = 0 + -4
1.2x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
1.2x + x2 = -4

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = -4 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = -4 + 0.36

Combine like terms: -4 + 0.36 = -3.64
0.36 + 1.2x + x2 = -3.64

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = -3.64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 50-(x+y)= | | 6y+2=5y+3 | | mx^2+(2m-1)x+m-3=0 | | 5y=18-3 | | (3a+4y)-(6a+4y)= | | 3x+-6=18 | | 7+5x(x+2)=10 | | 10x+40=20 | | 3k(2k+4)k=2 | | (2a+3)*x^2-X=0 | | p+p-72=0 | | 4Z+27=30+3Z | | 48y^2-13y-1=0 | | ln(4x+12)=9 | | (x+2)2=66 | | 3*ln(4x+12)=9 | | 9x+20=38 | | 3y+14=5y+11 | | 6k+9b=-9 | | 2l^2/3*k^1/3 | | q=3l+2k | | 3x^2-20x-375=0 | | 2x^2+11x-121=0 | | 2logx=-3 | | (64x^6)^1/3 | | 9x+1=2x+5 | | x=21.14285714+-0.5714285714y | | 9+1=2x+5 | | (3x-1)/(1-4x) | | 8x^3y^3+125=0 | | x+7+2x-5+x+3= | | Tan65=x/12 |

Equations solver categories