Jawabanmu

2014-08-12T04:42:24+07:00
1. -9p + 12p - 24 = 3p - 24
2. 2m^2 - 8mn - 3m^2 + 21mn = -1m^2 = 13mn
Jawaban paling cerdas!
2014-08-12T04:44:56+07:00
1. -9p + 4(3p-6) = -9p + 12p - 24 = 3p -24
2. 2m(m-4n) - 3m(m-7n) = 2m² - 8mn - 3m² + 21mn = (-1m²) + 13mn
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