y^2-84-5y=0

Simple and best practice solution for y^2-84-5y=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^2-84-5y=0 equation: 


Simplifying
y2 + -84 + -5y = 0

Reorder the terms:
-84 + -5y + y2 = 0

Solving
-84 + -5y + y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-7 + -1y)(12 + -1y) = 0


Subproblem 1
Set the factor '(-7 + -1y)' equal to zero and attempt to solve:

Simplifying
-7 + -1y = 0

Solving
-7 + -1y = 0

Move all terms containing y to the left, all other terms to the right.

Add '7' to each side of the equation.
-7 + 7 + -1y = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1y = 0 + 7
-1y = 0 + 7

Combine like terms: 0 + 7 = 7
-1y = 7

Divide each side by '-1'.
y = -7

Simplifying
y = -7

Subproblem 2
Set the factor '(12 + -1y)' equal to zero and attempt to solve:

Simplifying
12 + -1y = 0

Solving
12 + -1y = 0

Move all terms containing y to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + -1y = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = 0 + -12
-1y = 0 + -12

Combine like terms: 0 + -12 = -12
-1y = -12

Divide each side by '-1'.
y = 12

Simplifying
y = 12
Solution
y = {-7, 12}

See similar equations:

| x^2-29x+204=0 | | 5a-3a= | | 48ft^3=(w+2)(w)(2) | | 8p+3=15p-11 | | 4w^2-2w^2= | | h^2-17h-60=0 | | -15x=-2 | | 2(y+3)-y=5 | | 3c(4)c=0 | | x+11y=302x+3y=3 | | -5x+2=10x | | 0.0625x=.7 | | 2x+2x-1=3 | | x(-4x-3)(1.25)=0 | | -0.03846153846r=-66 | | p^2-10p=0 | | x+11y=30 | | x=[17.5]*32 | | 3w^2-3x-5=0 | | X^6-2x^3+1=0 | | ln(x-3)+ln(x+6)=ln(22) | | 16*-21=n | | (x-9)(x-6)=0 | | 5(a+3)=10a+-65 | | p^3-196p=0 | | .7h=-0.112 | | p^2-1=0 | | -80*15=p | | 131=7s+12 | | .4m-3=-1 | | 5000*4*.0825=x | | y=-2x^2-3x+10 |

Equations solver categories