The safest way to invest money is to invest in more than one type of investment.
The reason you diversify your investments, is to spread the risk of loss among many different choices. In other words, there is safety in numbers.
There are two possibilities. It could be +2.125 , and it could be -2.125 .
120 cm I believe
Hope this helps :)
But u can’t factor this anymore, there’s no like terms , this is the final form