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---- ----
2 2
= (2x - 3) (x + 3)
--------------------
(x - 3) (x + 3)
= (2x - 3)
----------
(x - 3)
22. (a - 2) (a - 8)
---- ----
2 2
= (2a - 2) (a - 4)
--------------------
4 - a
= 2a - 2
23. Di foto.
Pesan Singkat, tanda " ----- " adalah "per".