Question

\(\left(x+\frac{5}{3}\right).\left(x-\frac{5}{4}\right)=0\)

Answer 1

Answer 2

\(\left(x+\frac{5}{3}\right)\left(x-\frac{5}{4}\right)=0\\ \Rightarrow\left[{}\begin{matrix}x+\frac{5}{3}=0\\x-\frac{5}{4}=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-\frac{5}{3}\\x=\frac{5}{4}\end{matrix}\right.\)

VẬy...

Answer 3

<x-5/4>=0hoạc <x+5/3>=0 x=5/4 hoạc x=-5/3

Answer 4

để (x+5/3)(x-5/4)=0

thì: TH (1) x+5/3 =0 => x = -5/3

TH (2) x-5/4 =0 => x = 5/4

Vậy x=-5/3 hoặc x=5/4.