Answer:
or 
Step-by-step explanation:
Using the zero product property, first step is to set the given equation,
, to zero. Then factorise the left side.
Thus,

Subtract 2 from both sides


Factorise the left side



Find the solution

Or

Or



The answer is:
or 
62 divided by 0.25 is 248
6 adults were in the group and 4 children
Bother rectangles could be divided into 8 parts.