I've been told by the best minds that math is racist, so that's all the more reason to keep practicing it, right? Anyway, my answer will be in the comments.
All comments are subject to approval before they are published, so they will not appear immediately. Comments should be civil, relevant, and substantive. Anonymous comments are not allowed and will be unceremoniously deleted. For more on my comments policy, please see this entry on my other blog.
AND A NEW RULE (per this post): comments critical of Trump's lying must include criticism of Biden's or Kamala's or some prominent leftie's lying on a one-for-one basis! Failure to be balanced means your comment will not be published.
We're given:
ReplyDelete9^999 + 9^999 + 9^999 = ?
This can be rewritten as:
3(9^999)
In the exponential expression, the base 9 can be rewritten as 3^2, which means the expression inside the parentheses can be rewritten as
3^1998
power rule: (a^m)^n = a^mn
The full expression, then, is:
3(3^1998)
3 is basically 3^1, so add powers because the other power rule is
a^m • a^n = a^(m+n)
So the answer is
3^1999.
QED.