How do you multiply (x + -3)(10x + -20)? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer Aswin K. Aug 8, 2017 10x^2-50x+60 Explanation: (x+ -3)(10x+ -20) = (x-3)(10x-20) = x*(10x-20)-3*(10x-20) = (10x^2-20x)-30x+60 = 10x^2-20x-30x+60 = 10x^2-50x+60 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 1602 views around the world You can reuse this answer Creative Commons License