(9y)(81+9y-y^2)=

Simple and best practice solution for (9y)(81+9y-y^2)= 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 (9y)(81+9y-y^2)= equation:


Simplifying
(9y)(81 + 9y + -1y2) = 0

Remove parenthesis around (9y)
9y(81 + 9y + -1y2) = 0
(81 * 9y + 9y * 9y + -1y2 * 9y) = 0
(729y + 81y2 + -9y3) = 0

Solving
729y + 81y2 + -9y3 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '9y'.
9y(81 + 9y + -1y2) = 0

Ignore the factor 9.

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(81 + 9y + -1y2)' equal to zero and attempt to solve: Simplifying 81 + 9y + -1y2 = 0 Solving 81 + 9y + -1y2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -81 + -9y + y2 = 0 Move the constant term to the right: Add '81' to each side of the equation. -81 + -9y + 81 + y2 = 0 + 81 Reorder the terms: -81 + 81 + -9y + y2 = 0 + 81 Combine like terms: -81 + 81 = 0 0 + -9y + y2 = 0 + 81 -9y + y2 = 0 + 81 Combine like terms: 0 + 81 = 81 -9y + y2 = 81 The y term is -9y. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9y + 20.25 + y2 = 81 + 20.25 Reorder the terms: 20.25 + -9y + y2 = 81 + 20.25 Combine like terms: 81 + 20.25 = 101.25 20.25 + -9y + y2 = 101.25 Factor a perfect square on the left side: (y + -4.5)(y + -4.5) = 101.25 Calculate the square root of the right side: 10.062305899 Break this problem into two subproblems by setting (y + -4.5) equal to 10.062305899 and -10.062305899.

Subproblem 1

y + -4.5 = 10.062305899 Simplifying y + -4.5 = 10.062305899 Reorder the terms: -4.5 + y = 10.062305899 Solving -4.5 + y = 10.062305899 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + y = 10.062305899 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + y = 10.062305899 + 4.5 y = 10.062305899 + 4.5 Combine like terms: 10.062305899 + 4.5 = 14.562305899 y = 14.562305899 Simplifying y = 14.562305899

Subproblem 2

y + -4.5 = -10.062305899 Simplifying y + -4.5 = -10.062305899 Reorder the terms: -4.5 + y = -10.062305899 Solving -4.5 + y = -10.062305899 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + y = -10.062305899 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + y = -10.062305899 + 4.5 y = -10.062305899 + 4.5 Combine like terms: -10.062305899 + 4.5 = -5.562305899 y = -5.562305899 Simplifying y = -5.562305899

Solution

The solution to the problem is based on the solutions from the subproblems. y = {14.562305899, -5.562305899}

Solution

y = {0, 14.562305899, -5.562305899}

See similar equations:

| 12(0)-3x=-6 | | 185(x)=25x+10 | | -3(2s-3)-9=-2(9s+6)-3 | | X=-7.6 | | D/9-14=-8 | | x^3+4x^2-5x+5= | | 7m-2+3m+1=-3(1-3m) | | -74=x/64 | | 5x=(3x^2)+1 | | -19x+(-34)=56+(-x) | | 0.3m+1=13 | | y=60x+(210-2) | | 5/3x=21 | | x^3+9x^2+14x-24=(x+6) | | 10c-20=-5(15c-13) | | W/6=-4 | | 8x-7x+10=x+6 | | -3(z+1)-8z=-6(2z+8) | | 3/4x-6=1/2 | | 6x-15=-1+4x | | C=5/9(-49-32) | | -19n=-5-2(12n-5) | | d=.5(Vi+Vf)*t | | 8r=-8(-3r-19)+8 | | 5y-3(5y-2)=-2(4y+2) | | 2x-x-7=41 | | 11b+7=42 | | 12d+8+5d=5(3d-20)+14d | | 5m=57.3 | | 16+[-7+(-6)]= | | 35+0.75p+12=50 | | 13(m)=0.3m+1 |

Equations solver categories