mohon bantuanny yg udah dilingkarin nomernya, pake cara ya;)

4.5(x+2y) dan 3(y-2x)
= 5x+10y+3y-6x
=10y+3y-6x+5x
13y-x

14.2p(3+q) dan q(1-2p)
=6p+2pq+q-2pq
=6p+2pq-2pq+q
=6p+q

15.3(y-1) dari 2(7-y)
=3y-3-14+2y
=-3-14+3y+2y
=-17+5y