3y^2-9y+28=0

Simple and best practice solution for 3y^2-9y+28=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 3y^2-9y+28=0 equation:


Simplifying
3y2 + -9y + 28 = 0

Reorder the terms:
28 + -9y + 3y2 = 0

Solving
28 + -9y + 3y2 = 0

Solving for variable 'y'.

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

Divide each side by '3'.
9.333333333 + -3y + y2 = 0

Move the constant term to the right:

Add '-9.333333333' to each side of the equation.
9.333333333 + -3y + -9.333333333 + y2 = 0 + -9.333333333

Reorder the terms:
9.333333333 + -9.333333333 + -3y + y2 = 0 + -9.333333333

Combine like terms: 9.333333333 + -9.333333333 = 0.000000000
0.000000000 + -3y + y2 = 0 + -9.333333333
-3y + y2 = 0 + -9.333333333

Combine like terms: 0 + -9.333333333 = -9.333333333
-3y + y2 = -9.333333333

The y term is -3y.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3y + 2.25 + y2 = -9.333333333 + 2.25

Reorder the terms:
2.25 + -3y + y2 = -9.333333333 + 2.25

Combine like terms: -9.333333333 + 2.25 = -7.083333333
2.25 + -3y + y2 = -7.083333333

Factor a perfect square on the left side:
(y + -1.5)(y + -1.5) = -7.083333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7x-5/3-131/3 | | x^2-12x=2 | | 40-4x=5-9x | | 8x+12=-4 | | 0=3x^2+16x-6 | | 2x^2-4x+1.5=0 | | 12x=0.85 | | 2-(1+4x)=3(x-9) | | x^6+27y^3= | | 4x-13=9x+6 | | 2(i+4)=4(i-2) | | 2p+8q-8(2p-5q+2r)= | | (2.4m^3)= | | 4x^2y(x+1)+8x(x+1)=0 | | cos(2x)=-0.45 | | 4(-n)=200 | | 9984+(38.4*x)=38.11*(260+x) | | 42=3+3x | | 3(4x+3)=7x+5x+21 | | -19+(-65)= | | (-1/4)/(-3/8) | | -10=2x-3/4 | | 2x^2+4x+134=0 | | (1/3)9z= | | ln(x-3)=3 | | a^2-10=3a | | -10=2x-3x/4 | | -1/4/-3/8 | | (x^3-8)^2/3 | | (15)x=625 | | 36/100 | | 5(2x-6)+20=10 |

Equations solver categories