The formula of product's power calculation What is the sum of the sixth power of (- 2XY quadratic) and the third power of (- 3x quadratic y quartic)

The formula of product's power calculation What is the sum of the sixth power of (- 2XY quadratic) and the third power of (- 3x quadratic y quartic)

Original formula = 64x ^ 6y ^ 12-27x ^ 6y ^ 12
=37x^6y^12