October 2018 1 75 Report
1. (a+b)^2 - 4 = ? (Faktorisaai selisih dua kuadrat)
2. ax^2 + 15 ax - 16a = ? ( bila, ax^2 + bx +c dengan a = 1

Bantuin juga nomor 3 dan 10. Makasih
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