Question

спростити вираз (5√2-9√8)-2√50​

Answer 1

Объяснение:

$(5 \sqrt{2} - 9 \sqrt{8} ) - 2 \sqrt{50} =5\sqrt{2}-9\times 2\sqrt{2}-2\sqrt{50} =5\sqrt{2}-18\sqrt{2}-2\sqrt{50} =-13\sqrt{2}-2\sqrt{50} =-13\sqrt{2}-2\times 5\sqrt{2} =-13\sqrt{2}-10\sqrt{2} =-23\sqrt{2}$