(4a\3b^-1)^2 * 64a^3b^2

Question

(4a\3b^-1)^2 * 64a^3b^2

Answer 1

(4а /  3b⁻¹)²   *  64a³b²  = (4²a² / 3²b⁻²  )   *  64a³b² =
= (16a²*b² *64a³b²)/9  = (1024a⁵b⁴ / 9)