tolonggg dongg plisssssss

1.)
5a + 3b - 2 + (6 - 2(a + 5b)
= 5a + 3b - 2 + 6 - 2a - 10b
= 3a - 7b + 4

2.)
3m(8n - 9p) + 2m(6n - 2p)
= 24mn - 27pm + 12mn - 4pm
= 36mn - 31pm

3.)
2a (b + 3) - 5a (2b - 6)
= 2ab + 6a - 10ab + 30a
= -8ab + 36a

4.)
x(2y + 6) - (8 - 4x - 5xy)
= 2xy + 6x - 8 + 4x + 5xy
= 7xy + 10x - 8

Semoga membantu dan semoga bermanfaat...