Does anybody know how to do this

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.
When bases are same the exponents are added
According to this rule [tex] a^{m} .a^{n} =a^{m+n} [/tex]
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