The exponent rule for raising a power to a power indicates that we can multiply the exponents. So, A^(n^2+3) can be simplified to A^n^(2+3) which equals A^n^5.
Similarly, simplifying a^(6n+n^2) we get a^(n^2+6n).
Therefore, A^(n^2+3) can be rewritten as A^n^5 and a^(6n+n^2) can be rewritten as a^(n^2+6n).
The exponent rule for raising a power to a power indicates that we can multiply the exponents. So, A^(n^2+3) can be simplified to A^n^(2+3) which equals A^n^5.
Similarly, simplifying a^(6n+n^2) we get a^(n^2+6n).
Therefore, A^(n^2+3) can be rewritten as A^n^5 and a^(6n+n^2) can be rewritten as a^(n^2+6n).