Trang chủ » Hỏi đáp » Môn Toán Giair phương trình sau: (3x-1)(2x-5)=(3x-1)(x+2) 16/11/2023 Giair phương trình sau: (3x-1)(2x-5)=(3x-1)(x+2)
(3x-1)(2x-5)=(3x-1)(x+2) <=> (3x-1)(2x-5)-(3x-1)(x+2)=0 <=> (3x-1)(2x-5-x-2)=0 <=> (3x-1)(x-7)=0 <=> \(\left[ \begin{array}{l}3x-1=0\\x-7=0\end{array} \right.\) <=> \(\left[\begin{array}{l}x=\dfrac{1}{3}\\x=7\end{array} \right.\) Vậy S={1/3;7} #TD Trả lời
