FOIL method
First:
u squared times u squared equals to u to the fourth.
Outer and Inner:
8u squared + u squared equal 9u squared. Remember, the exponents don't change when adding!
Last:
8 times 1 equals 8
The answer is C
Hope it helped
Answer:
square root of 167281 is 409
Here's the Step-by-step explanation using division: