Jawabanmu

2014-09-03T19:27:12+07:00
A. -20x + 3y +10y = -20x +13y

b. -2p (8p + 7 ) 
    = -16p² -14p + 3p + 9q
    = -16p²-11p+9q
Jawaban paling cerdas!
2014-09-03T19:48:58+07:00
1)a. -20x+8y-5y+10y
     =-20x-7y
b. (3p+9q)-2p(8q+7)
     =3p+9p-16pq-14p
     =12p-14p-16pq
     =-2p-16pq
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