Question

Answer 1

`a, 2x^2y^2 1/4 xy^3 . (-3xy)`

`= -3/2 x^4 y^6`

`b, (-2x^3y)^2 xy^2 . 1/2y^5`

`= -2 x^7 y^7`

Answer 2

a) \(2x^2y^2.\dfrac{1}{4}xy^3.\left(-3xy\right)\)

\(=\left(-3.2.\dfrac{1}{4}.\right)\left(x^2y^2.xy^3.xy\right)\)

\(=-\dfrac{3}{2}x^4y^6\)

b) \(\left(-2x^3y\right)^2.xy^2.\dfrac{1}{2}y^5\)

\(=4x^6y^2.xy^2.\dfrac{1}{2}y^5\)

\(=\left(4.\dfrac{1}{2}\right)\left(x^6y^2.xy^2.y^5\right)\)

\(=2x^7y^9\)

Answer 3

`a, 2x^2y^2 1/4 xy^3 . (-3xy)`

`= -3/2 x^4 y^6`

`b, (-2x^3y)^2 xy^2 . 1/2y^5`

`= -2 x^7 y^9`