How do you simplify #(3x+5)(x-3) #? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer Aclixion Mar 6, 2018 #3x^2-4x-15# Explanation: To multiply these polynomials, take #3x# and multiply it by #x# and #-3# and do the same to #5#. After you multiplied the polynomials, combine the like terms. #(3x+5)(x-3)# #3x^2-9x+5x-15# #3x^2-4x-15# Answer link Related questions What is FOIL? How do you use the distributive property when you multiply polynomials? How do you multiply #(x-2)(x+3)#? How do you simplify #(-4xy)(2x^4 yz^3 -y^4 z^9)#? How do you multiply #(3m+1)(m-4)(m+5)#? How do you find the volume of a prism if the width is x, height is #2x-1# and the length if #3x+4#? How do you multiply #(a^2+2)(3a^2-4)#? How do you simplify #(x – 8)(x + 5)#? How do you simplify #(p-1)^2#? How do you simplify #(3x+2y)^2#? See all questions in Multiplication of Polynomials by Binomials Impact of this question 2680 views around the world You can reuse this answer Creative Commons License