Jawabanmu

2014-09-07T17:55:20+07:00
2014-09-07T18:00:26+07:00
A)2m(4m-3) - 3(m-2n)
=8mkuadrat-6m -3m +6n
=8mkuadrat -9m +6n

b) 7y +3x(4y-x) -5y(1-x) + 5xkuadrat
=7y +12xy -3xkuadrat -5y +5xy + 5 xkuadrat
=7y-5y +12xy+5xy -3xkuadrat+5xkuadrat
=2y+17xy+2xkuadrat
3 3 3