✨ Best Answer ✨
(1-√2)x>√(18)-3 ⇔ (1-√2)x>3√2-3
⇔ (1-√2)x>3(√2-1)
⇔ (1-√2)x>-3 (1-√2)
⇔ x<-3
(1-√2)が負なので、両辺を(1-√2)で割ると不等号が反転する
途中式どうなりますか?
✨ Best Answer ✨
(1-√2)x>√(18)-3 ⇔ (1-√2)x>3√2-3
⇔ (1-√2)x>3(√2-1)
⇔ (1-√2)x>-3 (1-√2)
⇔ x<-3
(1-√2)が負なので、両辺を(1-√2)で割ると不等号が反転する
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