Question

Express each of the following products as a monomials and verify the result for x = 1, y = 2:

(-xy3) × (yx3) × (xy)

Answer 1

Let us simplify the given expression

= -x × y3 × y × x3 × x × y

= -x1+3+1 × y3+1+1

= -x5y5

Now let us substitute when, x = 1 and y = 2

= -x5y5

= -15 × 25

= -32