Question

Does anybody know how to do this

Answer 1

property of integer exponent states that to multiply two powers with the same base, add the exponents .

aˣaⁿ = a⁽ˣ⁺ⁿ⁾

So last option is the correct choice.

Answer 2

When bases are same the exponents are added

According to this rule $a^{m} .a^{n} =a^{m+n}$

Here a is the base and m and n are the exponents

Bases at both places are same and there is a multiplication sign in between so the exponents are multiplied to give m+n

In the above question the last option that is to multiply the powers with same base add the exponents is correct