Answer:
[tex] 4x}^{6} {y}^{10} [/tex]
Step-by-step explanation:
The reason it is 4x^2 for the first part is because the entirety of -2x^3 is being squared, so we need to do -2×-2 which will give us the 4 and 3×2 which will give us the 6.
It's y^10 because we have y×y^9, so we ADD the powers, giving us the power of 10.
