5y^2+23y+20=0

Simple and best practice solution for 5y^2+23y+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 5y^2+23y+20=0 equation:


Simplifying
5y2 + 23y + 20 = 0

Reorder the terms:
20 + 23y + 5y2 = 0

Solving
20 + 23y + 5y2 = 0

Solving for variable 'y'.

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

Divide each side by '5'.
4 + 4.6y + y2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 4.6y + -4 + y2 = 0 + -4

Reorder the terms:
4 + -4 + 4.6y + y2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 4.6y + y2 = 0 + -4
4.6y + y2 = 0 + -4

Combine like terms: 0 + -4 = -4
4.6y + y2 = -4

The y term is 4.6y.  Take half its coefficient (2.3).
Square it (5.29) and add it to both sides.

Add '5.29' to each side of the equation.
4.6y + 5.29 + y2 = -4 + 5.29

Reorder the terms:
5.29 + 4.6y + y2 = -4 + 5.29

Combine like terms: -4 + 5.29 = 1.29
5.29 + 4.6y + y2 = 1.29

Factor a perfect square on the left side:
(y + 2.3)(y + 2.3) = 1.29

Calculate the square root of the right side: 1.135781669

Break this problem into two subproblems by setting 
(y + 2.3) equal to 1.135781669 and -1.135781669.

Subproblem 1

y + 2.3 = 1.135781669 Simplifying y + 2.3 = 1.135781669 Reorder the terms: 2.3 + y = 1.135781669 Solving 2.3 + y = 1.135781669 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + y = 1.135781669 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + y = 1.135781669 + -2.3 y = 1.135781669 + -2.3 Combine like terms: 1.135781669 + -2.3 = -1.164218331 y = -1.164218331 Simplifying y = -1.164218331

Subproblem 2

y + 2.3 = -1.135781669 Simplifying y + 2.3 = -1.135781669 Reorder the terms: 2.3 + y = -1.135781669 Solving 2.3 + y = -1.135781669 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + y = -1.135781669 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + y = -1.135781669 + -2.3 y = -1.135781669 + -2.3 Combine like terms: -1.135781669 + -2.3 = -3.435781669 y = -3.435781669 Simplifying y = -3.435781669

Solution

The solution to the problem is based on the solutions from the subproblems. y = {-1.164218331, -3.435781669}

See similar equations:

| 13x^2-17x= | | 6(2-2a)=10 | | y=2x^2-68x+576 | | -2(3x-4)=38 | | 6-2b=8 | | h(t)=-16t^2+64t+80 | | 4x-3y-12=0 | | 2x+34=1 | | 5*x*0.17=20 | | 3(2x-4)=30 | | X-2(x-5)=3x-(8-x) | | X^2-5x=-3 | | 12(x-1)=52-14(x-1) | | 4534.16=3.14*r^2 | | 2x+5+8x=7+6x+14 | | 6079.04=3.14*r^2 | | p-3=1 | | -2(5s-5)-10=-3(8s+5)-4 | | 12x-3=57 | | 8(x+2)=4(2x+9)-20 | | 4b/2+3=11+b | | 0.3(x+10)+1.1x=52 | | -(5x+4)-(-4x-9)=5 | | 12x+0=144 | | 7+5x+16=3+2x+29 | | (-6i)(-3i)= | | 16(t-4)+5t=7(3t+5)-11 | | y-3=-14 | | 0.02(10000)+0.06x=0.056(10000+x) | | 13+4x+17=21+3x+15 | | 0.45x+.05(14-x)=.10(55) | | 11-3x=8-3x |

Equations solver categories