quandilly354 quandilly354 12-12-2022 Mathematics contestada Adding and Subtracting Rational Expressions: Mastery Test 1 Select the correct answer. What is the simplest form of this expression? A. B. C. D. 6 x-3 2+3 (2-1)(z-3) x+3 (z-1)(z-3) 62-3 (-1)(z-3) 2² +12z-15 (=-1)(2-3)