Question

Упростить выражение 5корень 2 + корень 32 - корень 98

Answer 1

$5 \sqrt{2} + \sqrt{32} - \sqrt{98} = \\ 5 \sqrt{2} + \sqrt{16 \times 2} - \sqrt{49 \times 2} = \\ 5 \sqrt{2} + 4 \sqrt{2} - 7 \sqrt{2} = 2 \sqrt{2}$

Answer 2

$5\sqrt{2}+\sqrt{32}-\sqrt{98} =5\sqrt{2}+\sqrt{16*2}-\sqrt{49*2}=5\sqrt{2}+4\sqrt{2}-7\sqrt{2}=2\sqrt{2}$