How do you multiply 3xy(-x^4-4x^2 y+5xy^2) ?

1 Answer
Jun 26, 2015

= color(blue)(-3x^5y - 12x^3.y^2 + 15x^2y^3

Explanation:

color(blue)(3xy)(-x^4-4x^2y+5xy^2)
=color(blue)(3xy) . (-x^4) + color(blue)(3xy) . (-4x^2y) + color(blue)(3xy) . (5xy^2)

= color(blue)(-3x^5y - 12x^3.y^2 + 15x^2y^3