Question

rút gọn A=|x+3/4|-2 với x<-3/4

Answer 1

`x<-3/4=>x+3/4<0`

`=>|x+3/4|=-x-3/4`

`=>A=-x-3/4-2`

`=>A=-x-11/4`

Answer 2

do \(x< -\dfrac{3}{4}\) nên :

\(A=|x+\dfrac{3}{4}|-2=\left(-x-\dfrac{3}{4}\right)-2=-x-\dfrac{11}{4}\)

Answer 3

tick mik nha

Answer 4

Ta có: \(A=\left|x+\dfrac{3}{4}\right|-2\)

\(=-x-\dfrac{3}{4}-2\)

\(=-x-\dfrac{11}{4}\)