How do you multiply (x^(2) + 9)(x+4)? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer eduarchitect Jul 5, 2017 x^3 + 4x^2+9x+36 Explanation: just multiply internal factors (x^2.x) +( x^2 .4)+(9.x)+(9.4) = x^3 + 4x^2+9x+36 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 1424 views around the world You can reuse this answer Creative Commons License