y^2+18y+81=0

Simple and best practice solution for y^2+18y+81=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 y^2+18y+81=0 equation:


Simplifying
y2 + 18y + 81 = 0

Reorder the terms:
81 + 18y + y2 = 0

Solving
81 + 18y + y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(9 + y)(9 + y) = 0

Subproblem 1

Set the factor '(9 + y)' equal to zero and attempt to solve: Simplifying 9 + y = 0 Solving 9 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + y = 0 + -9 y = 0 + -9 Combine like terms: 0 + -9 = -9 y = -9 Simplifying y = -9

Subproblem 2

Set the factor '(9 + y)' equal to zero and attempt to solve: Simplifying 9 + y = 0 Solving 9 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + y = 0 + -9 y = 0 + -9 Combine like terms: 0 + -9 = -9 y = -9 Simplifying y = -9

Solution

y = {-9, -9}

See similar equations:

| X+x+x=5.736 | | 25x^3-4x= | | 12x^2+4x=1 | | 870+30X=1200 | | 4y-2=26 | | 2x+0=0 | | 4w=12 | | 32=17-X | | -[10x-(3x+1)]=-4-[4(3x-3)-3x] | | 5(y-5)(y-3)+4(y+4)(y+3)=9(y+4)(y-5) | | 7[3-(5+6x)]-4x=-16+2(1-23x) | | 75x^2-12= | | 15x^5+15X^2=0 | | -4(w+6)=-8w-16 | | 4x-10x=48 | | 4x^3+5x^2-36-45= | | -1+2y=9 | | -3m-27-4(m-3)=4m-(6m-4)-9m+5 | | 50-5x=35 | | 100x^2-500x= | | 14=11+[1.5(x-11)] | | -[2z-(9z+5)]=5+(6z+9) | | 3(x-4)=8(x-9) | | 18+y=30 | | 2[w-(3w+13)+10]=2(w+3) | | 23X-13X=50 | | -(-x)=36 | | -7(t+1)-t-12=-8(t+4)+13 | | 9x^3+9x^2-25x-25= | | -7+5= | | -2p-5(5-2p)=4(p-3)-29 | | -2(x-1)= |

Equations solver categories