Math Help - Simple Indicie problem

Sorry, very simple question i'm stuck on.

Example in my book shows:



My Q.

So I just substituted to get

Which is way off the answer in my book of

thanks!

Originally Posted by Jordan

Sorry, very simple question i'm stuck on.

Example in my book shows:



My Q.

So I just substituted to get

Which is way off the answer in my book of

thanks!

is the right answer (you could have checked this with a calculator). the book made a typo. evidently the small 3 should be a big 3

Hello, Jordan!

So I just substituted to get: . . . . . Right!

Which is way off the answer in my book: .

I bet it's a typo in your book.
. . There is no way that a cube root could appear in that problem!

Look at your answer and theirs: .

It looks like "The Case of the Misplaced 3" (coming to a theater near you).

Haha, I didn't check it on the calculator because I just assumed the book was right. My mistake.