How do you multiply #(x+10) 3x#? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer Don't Memorise Jun 25, 2015 # = color(green)(3x^2 + 30x# Explanation: #(x+10)color(green)( 3x)# Here #color(green)(3x)# needs to be multiplied with each term within brackets: #= (x).color(green)(3x) + (10).color(green)(3x) # # = color(green)(3x^2 + 30x# 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 2106 views around the world You can reuse this answer Creative Commons License