What is the solution set for #x² + 4x - 3 = 9 + 5x#? Algebra Quadratic Equations and Functions Comparing Methods for Solving Quadratics 1 Answer dani83 Aug 14, 2015 # x = 4 " or " x = -3 # Explanation: # x^2 + 4x - 3 = 9 + 5x # # x^2 - x - 12 = 0 # # (x-4)(x+3) = 0 # # x = 4 " or " x = -3 # Answer link Related questions What are the different methods for solving quadratic equations? What would be the best method to solve #-3x^2+12x+1=0#? How do you solve #-4x^2+4x=9#? What are the two numbers if the product of two consecutive integers is 72? Which method do you use to solve the quadratic equation #81x^2+1=0#? How do you solve #-4x^2+4000x=0#? How do you solve for x in #x^2-6x+4=0#? How do you solve #x^2-6x-16=0# by factoring? How do you solve by factoring and using the principle of zero products #x^2 + 7x + 6 = 0#? How do you solve #x^2=2x#? See all questions in Comparing Methods for Solving Quadratics Impact of this question 1463 views around the world You can reuse this answer Creative Commons License