Step-by-step explanation:
So you can check for extraneous solutions by plugging in the 5 and -2 as x.
Plug 5 in as x

I'm not sure if this is exactly considered an extraneous solution, but I'm assuming it is, since technically the radical doesn't have a plus/minus in front of it, so it's the principle square root which means it only outputs the positive values. This would mean that the -2 wouldn't be a solution, since the principle square root doesn't output negative values, so it's a function, since if it outputted 2 values, then it wouldn't be a function by definition.
Answer:
The animals must be separated in groups of 12.
Step-by-step explanation:
To answer this problem, these quantities must be decomposed into their prime factors.


Now we look for the maximum common divisor between both terms to find the number that allows us to divide both the quantities into groups of equal size
Then the largest common divisor between 72 and 84 is equal to the common terms with its lowest exponent
mcd (72; 84) = 
mcd (72; 84) = 12
Then the animals should be separated into groups of 12.
This means that 6 fences should be made with 12 sheep in each and 7 fences with 12 goats in each.
Answer:
- all real numbers x //z 5 because x = 70 x 3 = 210
Step-by-step explanation:
Answer: I believe it would be 42 different ways.
Step-by-step explanation:
multiply the 7 and the 6 to determine it