2007*8*1*
因為琴日siCK"左冇番學,,所以今日上maTHs
1d都唔明,,有冇人可以heLP mE aR???
[lee3題]
1. -2(3X X 3X -2X+5)=?? [即係負2乘括號3x既2次方再減2x+5]
2.16abX16abX16abX16ab÷4aX4aX4aXb=?? [即係16ab既4次方÷4a既3次方乘b]
3.4aX4aXbXbXbX5abX5ab=?? [即係4a既2次方再乘b既3次方再乘5ab既2次方]
講第2D野先,,
今日同boWIE msN 左1陣,,真係好MisS 佢同 jaCKY aR!!!~
~姨~ boWIE無lALa 打比我,,較到我電話費好費aR!!~ |