Tháng Mười 8, 2026

Danh mục: Hỏi Đáp

Hỏi Đáp

Đưa thừa số ra ngoài dấu căn: \(a)\,\,\,\sqrt {180{x^2}} \\ b)\,\sqrt {3{x^2} – 6xy + 3{y^2}} \) A \(\begin{array}{l} a)\,\,6x\sqrt 5 \\ b)\,\,\,\left\{ \begin{array}{l} \left( {x – y} \right)\sqrt 3 \,\,\,\,khi\,\,\,\,x \ge y\\ \left( {y – x} \right)\sqrt x \,\,\,\,khi\,\,\,x < y \end{array} \right.. \end{array}\) B \(\begin{array}{l} a)\,\,\, – 6x\sqrt 5 \\ b)\,\,\left( {x – y} \right)\sqrt 3 \end{array}\) C \(\begin{array}{l} a)\,\,\left\{ \begin{array}{l} 6x\sqrt 5 \,\,\,khi\,\,\,x \ge 0\\ – 6x\sqrt 5 \,\,\,\,khi\,\,\,x < 0 \end{array} \right.\\ b)\,\,\,\left\{ \begin{array}{l} \left( {x – y} \right)\sqrt 3 \,\,\,khi\,\,\,x \ge 0\\ \left( {y – x} \right)\sqrt 3 \,\,\,khi\,\,\,x < y \end{array} \right.. \end{array}\) D \(\begin{array}{l} a)\,\, – 6x\sqrt 5 \\ b)\,\, – \left( {x – y} \right)\sqrt 3 \end{array}\)

adminby admin

Đưa thừa số ra ngoài dấu căn: \(a)\,\,\,\sqrt {180{x^2}} \\ b)\,\sqrt {3{x^2} – 6xy + 3{y^2}} \) A \(\begin{array}{l} a)\,\,6x\sqrt 5 \\ b)\,\,\,\left\{ \begin{array}{l} \left( …