Question

Hi I really need help s with this question please

Answer 1

-45x²y

so basically you subtract the numbers and then the indices

edit: just realised this was the wrong method x

Answer 2

3x^4 y - 48x^2 y =

3x^2 y ( x^2 - 16 ) =

3x^2 y ( x - 4 )( x + 4 )