20y^2+3y+8=

Simple and best practice solution for 20y^2+3y+8= 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 20y^2+3y+8= equation:


Simplifying
20y2 + 3y + 8 = 0

Reorder the terms:
8 + 3y + 20y2 = 0

Solving
8 + 3y + 20y2 = 0

Solving for variable 'y'.

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

Divide each side by '20'.
0.4 + 0.15y + y2 = 0

Move the constant term to the right:

Add '-0.4' to each side of the equation.
0.4 + 0.15y + -0.4 + y2 = 0 + -0.4

Reorder the terms:
0.4 + -0.4 + 0.15y + y2 = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 0.15y + y2 = 0 + -0.4
0.15y + y2 = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
0.15y + y2 = -0.4

The y term is 0.15y.  Take half its coefficient (0.075).
Square it (0.005625) and add it to both sides.

Add '0.005625' to each side of the equation.
0.15y + 0.005625 + y2 = -0.4 + 0.005625

Reorder the terms:
0.005625 + 0.15y + y2 = -0.4 + 0.005625

Combine like terms: -0.4 + 0.005625 = -0.394375
0.005625 + 0.15y + y2 = -0.394375

Factor a perfect square on the left side:
(y + 0.075)(y + 0.075) = -0.394375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2+6y=3x+6 | | 7-2=q | | 4X+25+5=0 | | 1-9+(-x)=-1x+(-6) | | 2(x)2-5(x)-4=0 | | 18x^2+30x-300= | | 9x+4y+(-4y)+(-11x)= | | 6-3(3x-5)=-15 | | 8y^2+25+3= | | 7-15x=5x-3 | | 7x-(3x+9)= | | 5l+l-4l+1-2l= | | 3a^2-4a-20= | | 3(t-5)-t=-7 | | 7n-5+6n+3=22 | | -5(3b+3)+(16b-4)=0 | | -5+3x-6=15-(2x-4) | | n*n*n=115+n*n | | 3x^2-26x+12=x(8x+2) | | 3x^2-26x+12=0 | | x+8+x^2=6 | | 1/3(5x+6)-1/2(x+5)=3 | | 6g+3g+6g-2g= | | 5(4-2n)+2(n+3)= | | 6n-5+7n+3=22 | | 4n+3=2n-7 | | D(D-12)=0 | | -8x^2-16x=0 | | 2(x-7)+x=3(x-7)+7 | | (x-7)(x-7)=-6 | | 4n+3=2n+7 | | 14u^2-13u-6=0 |

Equations solver categories