Answer:
[tex]\huge\boxed{7^{16}}[/tex]
Step-by-step explanation:
We can use exponent rules to try and simplify this expression down.
Exponent rules tell us that [tex]x^a + x^b = x^{a+b}[/tex].
This means that since we have the same base on both terms (7 and 7), we can add the exponents to get a simplified expression.
[tex]12 + 4 = 16[/tex]
So our simplified expression is [tex]7^{16}[/tex].
Hope this helped!