数学问题，大家讨论•••

cjj82949321 · 发表于 9-12-2012 08:25:07|来自：新加坡

FACTORISE COMPLETELY 15Ａ²Ｂ²－３３ＡB³

cjj82949321 · 发表于 9-12-2012 08:34:23|来自：新加坡

WAYNE BOUGHT 3 BOTTLES OF WINE AT$12.5 PER BOTTLE, 5 PACKETS OF FLOUR AT $3.5 PER PACKET AND 3 TRAYS OF EGGS AT$2.8 PER TRAY, THE GST LEVIED IS 7 % IF THE GST LEVIED IS INCREASED TO 10%，CALCULATE THE PERCENTAGE INCREASE IN HIS TOTAL BILL, CORRECT TO 3 SIGNIFICANT FIGURES

想法决定活法 · 发表于 9-12-2012 10:28:29|来自：新加坡

3ac/4ce÷15ab/16cd

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