Question

(x+3).(x-5)=0

Answer 1

<=>x+3=0

      x-5=0

<=>x=-3

      x=5

Vậy x=-3 hoặc 5

Answer 2

(x+3).(x-5)=0

\(\Rightarrow\orbr{\begin{cases}x+3=0\\x-5=0\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=\left(-3\right)\\x=5\end{cases}}\)

Answer 3

(X+3)(X-5)=0\(\Rightarrow x\in\hept{\begin{cases}\\\end{cases}-3;5}\)

Answer 4

<=> x+3=0 hoặc x-5 = 0

       x=-3    hoặc x= 5

nhớ tích

Answer 5

|x+5|=0

Answer 6

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