Question

Simplify a^2 x a^7

Answer 1

\[a ^{2}*a ^{7}=a ^{2+7}=a ^{9}\]

Answer 2

Aha!

When you multiply two terms like the one above you use this:

\[\large x^m. x ^n =x^{m+n}\]\

Use the same funda to get your answer! (Just like Ashish has shown above)