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-------- = ------------
12 6
11.y x-3
--- + ------- = 3y pangkat 2 +2x-6 per 6y
2 3y
12. 2 3 2x+6-3x-6 -x
--------- - -------- = -------------- =-----------------------
x+2 x+3 (x+2)(x+3) x pangkat 2+5x+6
13. 3ab 9b pangkat 2 3a pangkat 2
------- + ------------------- = ----------------
2c 4ac 4ab
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_______(D)
......6
11) 3y²+2x-6
__________(A)
...........6y
12) (2x+6) - (3x+6)
______________
.........(x+2) (x+3)
..............-x
_____________(D)
......(x²+5x+6)
13) 3ab x 4 ac
___________
.......2c x 9b²
12 a²bc
_______
18 b²c
..2 a²
———(A)
..3 b