Tolong kakkk pakai cara yg detail yaaaa ! No 1 – 7

Jawab:

1).3x(3+y)+2x+2xy

  9x+3xy+2x +2xy=11x + 5xy

2).2pq+2pr-3pq-7pr-pq+10qr

   (2pq-3pq-pq) (2pr-7pr+10pr)=-4pq + 5pr

3).x/4 – 2x/4 Kita cari kpk nya yaitu 4

   4.x – 4.2x=4x – 8x=-4x

4).2ab²c/8ab × 3ac/4

  8ab.4.2ab²c/8ab × 8ab.4.3ac/4=8ab²c × 24a²bc²=192 abc³

5).(2ab²c)³= 8a³bpangkat 5 c³

6).2abc/5b : 2a²/c

   5b.c.2abc/5b : 5b.c 2a²/c=2abc² : 10a²b=? (aku gk lupa caranya maaf yah)

7).x-2/2 + 2/5

  10.x-2 + 5.2=10x-20 + 10

   10x =10+20

    10x = 30

    10x:10 = 30:10

    x= 3

Maaf kalo slh