e: \(\left(a\sqrt{\dfrac{a}{b}+2\sqrt{ab}}+b\sqrt{\dfrac{a}{b}}\right)\cdot\sqrt{ab}\)
\(=a\cdot\sqrt{\dfrac{a}{b}\cdot\sqrt{ab}+2ab}+b\cdot\sqrt{\dfrac{a}{b}\cdot ab}\)
\(=a\cdot\sqrt{\dfrac{a\sqrt{ab}+2ab^2}{b}}+b\cdot a\)
\(=a\left(\sqrt{\dfrac{a\sqrt{ab}+2ab^2}{b}}+b\right)\)
\(=a\left(\dfrac{\sqrt{ab\sqrt{ab}+2ab^3}+b^2}{b}\right)\)
Đúng 5
Bình luận (0)