y^2-4y+5=0

Simple and best practice solution for y^2-4y+5=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+5=0 equation:


Simplifying
y2 + -4y + 5 = 0

Reorder the terms:
5 + -4y + y2 = 0

Solving
5 + -4y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -4y + -5 + y2 = 0 + -5

Reorder the terms:
5 + -5 + -4y + y2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -4y + y2 = 0 + -5
-4y + y2 = 0 + -5

Combine like terms: 0 + -5 = -5
-4y + y2 = -5

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 = -5 + 4

Reorder the terms:
4 + -4y + y2 = -5 + 4

Combine like terms: -5 + 4 = -1
4 + -4y + y2 = -1

Factor a perfect square on the left side:
(y + -2)(y + -2) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x+.5(0)=12 | | 2(0)+.5y=12 | | 2x+6=87 | | 11-8(6)= | | x+4=3/4 | | 11-86= | | 2x+2(0)=30 | | -20(3)= | | 2(0)+2y=30 | | -15+(-7)+9= | | 45-(-38)= | | 2x-11+x-15= | | r^3-8r^2-64r+512=0 | | 10x+4=10x+6 | | 3x^2+10x= | | 16b^2-25b=0 | | 3(2)-y=0 | | 100p+90q= | | 4x+0=7 | | 0=-16t^2+96t+640 | | 9y^4-37y^2=-4 | | 0.50x+0.35(140)=0.25(150) | | 15(6a+17)= | | 4.2x-3.44=3.36-4.3x | | 2x+55=7x+5 | | 5(u+2)-7u=24 | | 24(3x+4)=36(x+5) | | .20y-1.1=.10y+1-.6y | | 0.20y-1.1=.10y+1-0.6y | | 5x+9=7x-7 | | 9s-19=-4+8s | | -2(t-2)+8t=9t-9 |

Equations solver categories