How do you FOIL (3x - 4)(7x + 7)(3x−4)(7x+7)? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer Tessalsifi Jun 1, 2015 (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd (3x-4)(7x+7)=3x*7x+3x*7-4*7x-4*7(3x−4)(7x+7)=3x⋅7x+3x⋅7−4⋅7x−4⋅7 (3x-4)(7x+7)=21x²+21x-28x-28 (3x-4)(7x+7)=21x²-7x-28 You can factorize by seven : (3x-4)(7x+7)=7(3x²-x-4) 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 1685 views around the world You can reuse this answer Creative Commons License