you multiply regularly and if you don't know how to multiply I'm sorry. So after your done multiplying you would count the number of decimals there are to the right,
EXAMPLE: 7.484 has three decimals to the right
EXAMPLE: 7.23 has two decimals to the right
if you add both the examples you would get five decimals to the left
843.98083
in this case one in each number which makes two. You would bring the decimal left two spaces and get 5201.95 instead of 520195.
If I'm not wrong, then it's not possible to make zero by adding 5 to a number squared and if it is not (-x)^2 +5 = 0, then how can you evaluate the value?
Again, in this case, you are looking for the undefine<em>rate of change</em> [<em>slope</em>], meaning that there are repetitive x-coordinates. With that being said, you have your answer.
