Mathematics
Junior High

どうやって因数分解しますか💦

口12

Answers

(与式)= -(1/2a^2-2/9b^2)
= -{(1/√2 a+√2/√9b)(1/√2-√2/√9b)
= -{(√2/2a+√2/3b)(√2/2a-√2/3b)

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