24a^5 b^2 = 2ab(12a^3b)
greatest common factor of these monomials = 2ab
ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t. then add -3.6 + 1.2 which is -2.4
so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3
34a^2 b 24a^5 b^2...