y^2=-8y-15

Simple and best practice solution for y^2=-8y-15 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=-8y-15 equation:


Simplifying
y2 = -8y + -15

Reorder the terms:
y2 = -15 + -8y

Solving
y2 = -15 + -8y

Solving for variable 'y'.

Reorder the terms:
15 + 8y + y2 = -15 + -8y + 15 + 8y

Reorder the terms:
15 + 8y + y2 = -15 + 15 + -8y + 8y

Combine like terms: -15 + 15 = 0
15 + 8y + y2 = 0 + -8y + 8y
15 + 8y + y2 = -8y + 8y

Combine like terms: -8y + 8y = 0
15 + 8y + y2 = 0

Factor a trinomial.
(5 + y)(3 + y) = 0

Subproblem 1

Set the factor '(5 + y)' equal to zero and attempt to solve: Simplifying 5 + y = 0 Solving 5 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + y = 0 + -5 y = 0 + -5 Combine like terms: 0 + -5 = -5 y = -5 Simplifying y = -5

Subproblem 2

Set the factor '(3 + y)' equal to zero and attempt to solve: Simplifying 3 + y = 0 Solving 3 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + y = 0 + -3 y = 0 + -3 Combine like terms: 0 + -3 = -3 y = -3 Simplifying y = -3

Solution

y = {-5, -3}

See similar equations:

| -2=-5+3z | | 125=90 | | 90+125=180 | | D+40/5=11 | | 90+46=180 | | a(3a-11)=20 | | 18=2-4x | | -16=z | | A^2=11a-28 | | 5y+2=27 | | A^2=11a+-28 | | 13=h-6 | | n/5=11.1 | | -7+y=14 | | A^2=11a-12 | | 12.9=-4.3y | | x+(2x+11)+(2x-16)=180 | | -54.6=-7.8x | | 15=17+x | | 2.1+r=8.6 | | 20x^2-55x+35=0 | | t+4=-2 | | x+2.1=8.2 | | 2/x=2+2/10/x+2-2 | | 2.7+t=8.6 | | 2x-5=9x+2 | | 21=.75+m | | -30=7+h | | -279-x=226 | | g+20=-50 | | 3(.3+c)=1.6 | | f-6=-7 |

Equations solver categories