Toán (x-1)(x+3)=0 Giúp mình giải bài này với mn 27/07/2021 By Delilah (x-1)(x+3)=0 Giúp mình giải bài này với mn
$(x – 1)(x + 3) = 0$ $\text{TH1:}$ $x – 1 = 0$ $x = 0 + 1$ $x = 1$ $\text{TH2:}$ $x + 3 = 0$ $x = 0 – 3$ $x = -3$ $\text{Vậy x ∈ {1 ; -3}}$ Trả lời
${(x-1)(x+3)=0}$⇒\(\left[ \begin{array}{l}x-1=0\\x+3=0\end{array} \right.\) ⇒\(\left[ \begin{array}{l}x=0+1\\x=0-3\end{array} \right.\) ⇒\(\left[ \begin{array}{l}x=1\\x=-3\end{array} \right.\) $\text{Vậy \(\left[ \begin{array}{l}x=1\\x=-3\end{array} \right.\) }$ $\text{STUDY WELL!}$ Trả lời
$(x – 1)(x + 3) = 0$
$\text{TH1:}$
$x – 1 = 0$
$x = 0 + 1$
$x = 1$
$\text{TH2:}$
$x + 3 = 0$
$x = 0 – 3$
$x = -3$
$\text{Vậy x ∈ {1 ; -3}}$
${(x-1)(x+3)=0}$
⇒\(\left[ \begin{array}{l}x-1=0\\x+3=0\end{array} \right.\)
⇒\(\left[ \begin{array}{l}x=0+1\\x=0-3\end{array} \right.\)
⇒\(\left[ \begin{array}{l}x=1\\x=-3\end{array} \right.\)
$\text{Vậy \(\left[ \begin{array}{l}x=1\\x=-3\end{array} \right.\) }$
$\text{STUDY WELL!}$