Question

( x + 20 )¹⁰⁰.| x + 4| = 0 

giúp tui với T_T

Answer 1

=>x+20=0 hoặc x+4=0

=>x=-4 hoặc x=-20

Answer 2

`(x+20)^100 . |x+4|=0`

TH1: `(x+20)^100 =0`

`x+20=0`

`x=-20`

TH2: `|x+4|=0`

`x+4=0`

`x=-4`

Vậy `x=-20;x=-4`

 

 

Answer 3

\(\left(x+20\right)^{100}.\left|x+4\right|=0\)

\(< =>\left[{}\begin{matrix}\left(x+20\right)^{100}=0\\\left|x+4\right|=0\end{matrix}\right.< =>\left[{}\begin{matrix}x+20=0\\x+4=0\end{matrix}\right.\)

\(< =>\left[{}\begin{matrix}x=0-20\\x=0-4\end{matrix}\right.< =>\left[{}\begin{matrix}x=-20\\x=-4\end{matrix}\right.\)

Vậy .............