How do you expand 5(2y-3)? Algebra Polynomials and Factoring Multiplication of Monomials by Polynomials 1 Answer smendyka Dec 12, 2016 10y - 15 Explanation: To expand this expression you need to distribute the 5 across the terms within the parenthesis" 5(2y - 3) -> (5*2y) - (5*3) -> 10y - 15 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 6896 views around the world You can reuse this answer Creative Commons License