ahdghzouli ahdghzouli 10-11-2022 Mathematics contestada 1.5.3 Quiz: Adding and Subtracting Rational Expressions Question 1 of 10 What is the least common denominator of the rational expressions below? 4 12 x² 3x² +15x A. x³(x+5) B. 3x³(x+5) C. x²(x+5) OD. 3x²(x+5) SUBMIT ?