Sederhanakanlah! 1. 2 (a-b)+3 (2a-b) 2. 3 (a+3)-2 (2a-1) 3. -5 (2a-b+3) 4. 2a+5-3 (2a-b-1) 5. 2(3a-1)-2 (a-2b-1) 6. (A+7)(a+5) 7. (p-3)(p+3) 8. (A-4)(a-b) 9. (2

1). 2 (a -b) +3 (2a -b)
= 2a -2b +6a -3b
= 2a +6a -2b -3b
= 8a -5b
2). 3 (a +3) -2 (2a -1)
= 3a +9 -4a +2
= 3a -4a +9 +2
= -a +11
3). -5 (2a -b +3)
= -10a +5b -15
4). 2a +5 -3 (2a -b -1)
= 4a -2ab -2a +10a -5b -5 -6a +3b +3
= 4a -2a +10a -6a -2ab -5b +3b -5 +3
= 6a -2ab -2b -2
5). 2 (3a -1) -2 (a -2b -1)
= 6a -2 -2a +4b +2
= 6a -2a -2 +2 +4b
= 4a +4b
6). (a +7)(a +5)
= a² +5a +7a +35
= a² +12a +35
7). (p -3)(p +3)
= p² +3p -3p -9
= p² -9
8). (a -4)(a -b)
= a² -ab -4a +4b
9). (2p +3)(2p -3)
= 4p² -6p +6p -9
= 4p² -9
10). (3p -1)(3p -1)
= 9p² -3p -3p +1
= 9p² -6p +1

*maaf jika salah, semoga membantu ^_^