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2.b
3d.
4.a
5.c
6.a
7.d
8b.
9.c
10c
11a.
12.a
13b.
14.d
15.d
4. 5x²-4x-2 ( b )
5. 4y²-8y-2 (d)
6. 2x+15 (d)
7. 30p²q² dan p (b)
8. a+3b-4c (d)
11. -10x²+29x-21 (a)