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-3a"+5ab-11
b) sama caranya dikelompokkan variabel yang sama keg diatas
-x"-2xy+3y
c) aku gak bisa
d) 12kl-5kl-20mn-3mn
7kl-23mn
maaf . semoga bermanfaat
= 2a" - 5a" + 3ab + 2ab -4 -7
= -3a" + 5ab -11
b. 4x" -3xy + 7y -5x" + 2xy -4y
= 4x" - 5x" -4y + 7y - 3xy + 2xy
= -x" + 3y + xy
c -4p" + 3pq - 2 - 6p - 3
= -4p" - 6p" + 3pq -2 -3
= -10p" + 3pq -5
d. 12kl - 20mn -5kl - 3mn
= 12kl -5kl - 20mn -3 mn
= 7kl - 23mn
Seingetku gitu, semoga membantu