Which of the following is closest in value to (9^8)-(9^2)?
Select.
A) 9^9  B) 9^8  C) 9^7  D) 9^6  E) 9^5
9^8 is much larger number than 9^2 and as we need approximate value then it's pretty much negligible in this case, so: (9^8)-(9^2) = ~9^8.   Answer: B.   Similar questions to practice:   Hope it helps.
<result>B</result>
Which of the following is closest in value to (9^8)-(9^2)?