Jawabanmu

2013-12-06T09:45:40+07:00
4K - 3L = 4(4a+2b) - 3(6b - 5a)
=16a + 8b - 18b + 15a
=31a -10b

5K + 6L = 5(4a+2b) + 6(6b - 5a)
=20a + 10b + 36b - 30a
= - 10a + 46b