How do you factor #9x^2 - 4#? Algebra Polynomials and Factoring Factor Polynomials Using Special Products 1 Answer CW Aug 30, 2016 #(3x-2)(3x+2)# Explanation: #a^2-b^2=(a-b)(a+b)# let # a^2=9x^2, and b^2=4# #a=3x, b=2# #9x^2-4=(3x-2)(3x+2)# Answer link Related questions How do you factor special products of polynomials? How do you identify special products when factoring? How do you factor #x^3 -8#? What are the factors of #x^3y^6 – 64#? How do you know if #x^2 + 10x + 25# is a perfect square? How do you write #16x^2 – 48x + 36# as a perfect square trinomial? What is the difference of two squares method of factoring? How do you factor #16x^2-36# using the difference of squares? How do you factor #2x^4y^2-32#? How do you factor #x^2 - 27#? See all questions in Factor Polynomials Using Special Products Impact of this question 36892 views around the world You can reuse this answer Creative Commons License