4y^2-5y+9=0

Simple and best practice solution for 4y^2-5y+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 4y^2-5y+9=0 equation:


Simplifying
4y2 + -5y + 9 = 0

Reorder the terms:
9 + -5y + 4y2 = 0

Solving
9 + -5y + 4y2 = 0

Solving for variable 'y'.

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

Divide each side by '4'.
2.25 + -1.25y + y2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + -1.25y + -2.25 + y2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + -1.25y + y2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -1.25y + y2 = 0 + -2.25
-1.25y + y2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-1.25y + y2 = -2.25

The y term is -1.25y.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25y + 0.390625 + y2 = -2.25 + 0.390625

Reorder the terms:
0.390625 + -1.25y + y2 = -2.25 + 0.390625

Combine like terms: -2.25 + 0.390625 = -1.859375
0.390625 + -1.25y + y2 = -1.859375

Factor a perfect square on the left side:
(y + -0.625)(y + -0.625) = -1.859375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5(.33x+7)-3(.5x-4)= | | 4x-3(2x+8)-7=12x+5 | | -14=-3x+7 | | 11xy+y=0 | | 7n-1=90 | | 15x^2/15x | | 12(17x+16)= | | (x^2-4x-7)=0 | | 5/7x=7/5 | | -102-14x=-102 | | 3x+28=4-2x | | -k+14=25 | | L=8x^2-4x+2.7 | | -5d-24=-24 | | (-30-2)=0(x+4)2 | | 43=-4y+3 | | -0.3x^2+6x-108=0 | | X^2+43=31 | | b-c=9 | | 2x-2/2x2-50 | | (5x/2)-x=(x/10)-(28/5) | | 17p+12=10p-13+7b | | x-1/8=-2/3 | | 3(x-4)-4(x-3)=x-3-(x-2) | | (8-z)(5z-4)=0 | | 5y+3=8y+21 | | 72=100-n | | 9=9/3-2 | | 18x^2-26x+15=0 | | 8(5/4x) | | 9(u+1)=2u-19 | | 10-(3-x)=40 |

Equations solver categories