Matching Pairs Identities and FactorizationOnline version Matching Terms Activity for Consolidation by Gavin Ip 1 Factorization 2 Identity 3 Check whether 4 Equation 5 Grouping 6 Prove 7 Taking Out Common Factors 8 Expansion 公式 証明 展開 抽取共同因子 併項 驗証 恆等式 因式分解