y^2+4y+9=0

Simple and best practice solution for y^2+4y+9=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 y^2+4y+9=0 equation:


Simplifying
y2 + 4y + 9 = 0

Reorder the terms:
9 + 4y + y2 = 0

Solving
9 + 4y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + 4y + -9 + y2 = 0 + -9

Reorder the terms:
9 + -9 + 4y + y2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 4y + y2 = 0 + -9
4y + y2 = 0 + -9

Combine like terms: 0 + -9 = -9
4y + y2 = -9

The y term is 4y.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4y + 4 + y2 = -9 + 4

Reorder the terms:
4 + 4y + y2 = -9 + 4

Combine like terms: -9 + 4 = -5
4 + 4y + y2 = -5

Factor a perfect square on the left side:
(y + 2)(y + 2) = -5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2xa-10=26 | | (-1)/(-2)=0 | | 7.2+a=19 | | a=1/2(27)(12) | | 12/9 | | Log(x+2)+Log(x-5)=log(70) | | -56=y | | 4y-2x+6=0 | | x^3+5x-24X=0 | | (x^2+2)/(4x+4)^2=0 | | 5x^2+5=-5x^2+11x+11 | | 23x+1=42 | | -5(-3+2)= | | 16.5a+3.5a=10 | | (7/x)=(5/2x)+36 | | 8x-2=4y+22 | | 6X^3Y^4/18X^7Y^2 | | Y=9x^2+3x-2 | | 5(c+2)-2c=35+5 | | Y+4.7=9.2 | | 0.50y=-2(y+1) | | 0=x^2+3x-70 | | m/5=27 | | -4x^3+6x=0 | | z+23+18=100+2 | | 70m^2=x^2+3x | | -1/2x=4 | | 3y-11=1 | | (2x-1)(x+6)=(x-2)(x+3) | | 5/3m=-70 | | 12x-2(6x+5)=-10 | | p+3=5 |

Equations solver categories