Soal aljabar 1.2ab+3(5ab-2ab) 2.7xy-12+5+3xy+2(3xy-2) 3.4(2p+2q-3)-2(2p+7p+4)

1. 2ab+3(5ab-2ab)=2ab+15ab-6ab=11ab
2. 7xy-12+5+3xy+2(3xy-2)=7xy-12+5+3xy+6xy-4=16xy-11
3. 4(2p+2q-3)-2(2p+7p+4)=8p+8q-12-4p-14p-8=-10p+8q-20