5y^2-9y+9=0

Simple and best practice solution for 5y^2-9y+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 5y^2-9y+9=0 equation:


Simplifying
5y2 + -9y + 9 = 0

Reorder the terms:
9 + -9y + 5y2 = 0

Solving
9 + -9y + 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'.
1.8 + -1.8y + y2 = 0

Move the constant term to the right:

Add '-1.8' to each side of the equation.
1.8 + -1.8y + -1.8 + y2 = 0 + -1.8

Reorder the terms:
1.8 + -1.8 + -1.8y + y2 = 0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + -1.8y + y2 = 0 + -1.8
-1.8y + y2 = 0 + -1.8

Combine like terms: 0 + -1.8 = -1.8
-1.8y + y2 = -1.8

The y term is -1.8y.  Take half its coefficient (-0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
-1.8y + 0.81 + y2 = -1.8 + 0.81

Reorder the terms:
0.81 + -1.8y + y2 = -1.8 + 0.81

Combine like terms: -1.8 + 0.81 = -0.99
0.81 + -1.8y + y2 = -0.99

Factor a perfect square on the left side:
(y + -0.9)(y + -0.9) = -0.99

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 80r^2-5= | | 25-(-4)-5= | | 2y+3=9y+60 | | 5(4x-3)(3x+5)=0 | | 9-(-14)+(-4)-8= | | 8y+1=1+8 | | x^2-26x-4=0 | | 3r^2-8r+5= | | 4x+11x^2-7= | | 38+62=x | | 5m+7=m+9 | | 9x^2+5=8 | | 4x^2-9=121 | | 5x-1=4x^2+5 | | x^2+81=16 | | 13x^2+17x=117 | | x^5+x^3+x^2+1=0 | | 2780=14x^2+16x+910 | | 5-10x=59-24x | | 2(n-2)-3(n-5)=15 | | -16=-4x-8 | | X^2+96X=0 | | -8-1= | | -34=-3(x+7)+2 | | n=8n+11 | | 10x=-4y+20 | | (6x+9)(9x-6)=0 | | -4(x+2)-36=3x-7(x+8) | | r(x)=59x-2x^2 | | 3x-24-7x=2x+24+2x | | 144+32x^2-x^4=0 | | 16a^2-24a+9=0 |

Equations solver categories