[數撚圍爐區] Most mathematicians are bipolar disorders... (8)
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對唔住 唔係好明點分段solve 
你指 -2<x<2 分段？
你指 -2<x<2 分段？
yes
分開 x \leq -2, x \geq 2, -2 < x < 2
睇下有咩solution, 再check個solution (如有) 係咪out of range
分開 x \leq -2, x \geq 2, -2 < x < 2
睇下有咩solution, 再check個solution (如有) 係咪out of range
yes對唔住 唔係好明點分段solve
你指 -2<x<2 分段？
分開 x ≤ -2, x ≥ 2, -2 < x < 2
睇下有咩solution, 再check個solution (如有) 係咪out of range
