The person on top might be a scam seen the same url too many times. J
Answer: (u^2+1) * (u-2) * (u+2)
Answer:
Step-by-step explanation:
Rationalize the denominator of b. So, multiply the numerator and denominator by 

Now, find a +b

Combine like terms

Now find (a + b)²
(a +b)² = 

Hint: 