Question

nhanh

Answer 1

`g) (19-2x)=81/5`

`=> 2x=19-81/5`

`=>x=7/5`

`h) (x+8)(x-1)=0`

`=>`\(\left[\begin{array}{} x=-8\\ x=1 \end{array} \right.\)

`m) (x+1)^5 -(x+1)^4 =0`

`=>(x+1)^4 .(x+1-1)=0`

`=>(x+1)^4 .x=0`

`=>`\(\left[\begin{array}{} x=-1\\ x=0 \end{array} \right.\)

`n) (x-2)^4 .[(x-2)^2-1]=0`

`=>` \(\left[\begin{array}{} x-2=0\\ (x-2)^2=1 \end{array} \right.\)

`=>`\(\left[\begin{array}{} x=2\\ x=3\\ x=1 \end{array} \right.\)