How do you multiply 3xy(-x^4-4x^2 y+5xy^2) ? Algebra Polynomials and Factoring Multiplication of Monomials by Polynomials 1 Answer Don't Memorise 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 Answer link Related questions What is Multiplication of Monomials by Polynomials? How do you multiply monomials by polynomials? How do you multiply monomials by monomials? How do you multiply (3xy^5)(-6x^4y^2)? How do you multiply and simplify 6ab(-10a^2 b^3+c^5)? How do you simplify -3a^2b(9a^2-4b^2)? How do you multiply y(xy^4)? How do you multiply (2x-1)(x^3-2x^2+3x-4)? How do you multiply (5n^2)(2n^5 - 2n^3 3n^7)? How do you simplify 2t^2+(3+5)(4t)? See all questions in Multiplication of Monomials by Polynomials Impact of this question 1839 views around the world You can reuse this answer Creative Commons License