5y-3y^2=28

Simple and best practice solution for 5y-3y^2=28 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-3y^2=28 equation:


Simplifying
5y + -3y2 = 28

Solving
5y + -3y2 = 28

Solving for variable 'y'.

Reorder the terms:
-28 + 5y + -3y2 = 28 + -28

Combine like terms: 28 + -28 = 0
-28 + 5y + -3y2 = 0

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

Divide each side by '-3'.
9.333333333 + -1.666666667y + y2 = 0

Move the constant term to the right:

Add '-9.333333333' to each side of the equation.
9.333333333 + -1.666666667y + -9.333333333 + y2 = 0 + -9.333333333

Reorder the terms:
9.333333333 + -9.333333333 + -1.666666667y + y2 = 0 + -9.333333333

Combine like terms: 9.333333333 + -9.333333333 = 0.000000000
0.000000000 + -1.666666667y + y2 = 0 + -9.333333333
-1.666666667y + y2 = 0 + -9.333333333

Combine like terms: 0 + -9.333333333 = -9.333333333
-1.666666667y + y2 = -9.333333333

The y term is -1.666666667y.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667y + 0.6944444447 + y2 = -9.333333333 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667y + y2 = -9.333333333 + 0.6944444447

Combine like terms: -9.333333333 + 0.6944444447 = -8.6388888883
0.6944444447 + -1.666666667y + y2 = -8.6388888883

Factor a perfect square on the left side:
(y + -0.8333333335)(y + -0.8333333335) = -8.6388888883

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| Y(5-3y)=28 | | m^5-2m^4+6m^3-9m^2+8m-4=0 | | 47-(4x+8)=4(x+3)+x | | 4t(t-6)=0 | | 6xy+36x+y+6=0 | | 2y^2+7y+5= | | 36n^3+78n^2-30n=0 | | p=5b+5h | | 5t^2-80=0 | | 21x^2+10x-24=0 | | 5000=18x-(10x+15000) | | 1000=18x-(15000+10x) | | 4(x+3)=10x-27 | | 7x-8=3x+20 | | 7x^3+56= | | x(2x-1)=120 | | 4x+25=9x-6 | | x^2+110x-2000=0 | | 6i-3=1+5i | | 0=18x-(10x+15000) | | 10f+4=9 | | 9(2r-1)=8(4r+12) | | 2n^2-32n+128= | | 3x+1+19=10 | | x+(x+39)+(2x-40)=699 | | 5xy=2 | | 2x^2-4=2 | | 2x^2+14x=36 | | 9x^2-62x-80=0 | | -2x(x-4)=4 | | 5(t-6)+7t=4(3t+5)-10 | | 3x^2+15x=150 |

Equations solver categories