Question

Multiply
( y/6 - 8) (y/6 + 8)

Answer 1

Answer:
`(y^2)/(36)-64`

Explanation:

First you need to know this property in order to understand what I'm doing.

If you have a and b multiplied by each other with different signs, simply square both a and b and put a negative sign in the middle, like this.

`(a+b)(a-b)=a^2-b^2`

Therefore;

`((y)/(6)-8) ((y)/(6)+8) =((y)/(6)) ^2-(8)^2=(y^2)/(36)-64`