(3/8a^8b^10+16/25a^2b^6)^2

\(\left(\frac{3}{8}a^8b^{10} + \frac{16}{25}a^2b^6\right)^2 = \frac{9}{64}a^{16}b^{20} + \frac{48}{200}a^{10}b^{16} + \frac{256}{625}a^4b^{12}\)