化简f(x)=(X2-1/16)/Ⅰx-1/4Ⅰ

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化简f(x)=(X2-1/16)/Ⅰx-1/4Ⅰ
麻烦帮我写个详细的步骤,小弟是新手分不多,

f(x) = (X^2-1/16) / | x-1/4|
= (X+1/4)(x-1/4) / | x-1/4|
当x＞1/4时：
= (X+1/4)(x-1/4) / ( x-1/4)
= (x+1/4)
当x＜1/4时：
= (X+1/4)(x-1/4) / {-( x-1/4)}
= - (x+1/4)

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