Question

Help me on this math shiiii

Answer 1

When you multiply two powers of the same base, you sum the exponents:

`a^b\cdot a^c = a^(b+c)`

So, in this case,

`4^4\cdot 4^(-9) = 4^(4-9) = 4^(-5)`

Now, negative exponents works like positive exponents, except you have to invert the number: i.e.

`a^(-b) = (1)/(a^b)`

So, you have

`4^(-5) = (1)/(4^5)`