Answer :

To simplify the expression [tex]\(\left(\frac{2 a^4}{5}\right)^4\)[/tex], follow these steps:

1. Start with the expression:
[tex]\[ \left(\frac{2 a^4}{5}\right)^4 \][/tex]

2. Apply the power to both the numerator and the denominator:
[tex]\[ \left(\frac{2 a^4}{5}\right)^4 = \frac{(2 a^4)^4}{5^4} \][/tex]

3. Calculate the numerator:
[tex]\[ (2 a^4)^4 \][/tex]
Here, raise both 2 and [tex]\(a^4\)[/tex] to the 4th power:
[tex]\[ (2 a^4)^4 = 2^4 \cdot (a^4)^4 \][/tex]

4. Simplify the powers:
[tex]\[ 2^4 = 16 \][/tex]
[tex]\[ (a^4)^4 = a^{4 \cdot 4} = a^{16} \][/tex]
So, the numerator becomes:
[tex]\[ 2^4 \cdot (a^4)^4 = 16 a^{16} \][/tex]

5. Calculate the denominator:
[tex]\[ 5^4 = 625 \][/tex]

6. Combine the numerator and denominator:
[tex]\[ \frac{16 a^{16}}{625} \][/tex]

Thus, the simplified form of [tex]\(\left(\frac{2 a^4}{5}\right)^4\)[/tex] is:

[tex]\[ \boxed{\frac{16 a^{16}}{625}} \][/tex]