How do you factor the expression #x^2 + 10x + 9#? Algebra Polynomials and Factoring Factorization of Quadratic Expressions 1 Answer Deepak G. Jul 29, 2016 #=(x+9)(x+1)# Explanation: #x^2+10x+9# #=x^2+9x+x+9# #=x(x+9)+1(x+9)# #=(x+9)(x+1)# Answer link Related questions How do you factor trinomials? What is factorization of quadratic expressions? How do you factor quadratic equations with a coefficient? What are some examples of factoring quadratic expressions? How do you check that you factored a quadratic correctly? How do you factor #x^2+16x+48#? How do you factor #x^2-9x+20#? Question #3fdac How do you factor #8+z^6#? There is no GCF to be factor out, so is there another method to complete this? How do you factor #2t^2+7t+3#? See all questions in Factorization of Quadratic Expressions Impact of this question 20945 views around the world You can reuse this answer Creative Commons License