After you rewrite subtraction as addition of the additive inverse, how can the like terms be grouped? [3a2 (â€"3a2)] (â€"5ab 8ab) [b2 (â€"2b2)] [3a2 (â€"3a2)] (â€"5ab 8ab) (b2 2b2) (3a2 3a2) [â€"5ab (â€"8ab)] [b2 (â€"2b2)] (3a2 3a2) [â€"5ab (â€"2b2)] [b2 (â€"8ab)]
