Question

Упростите выражение..............................................................

Answer 1

${\sqrt[4]{a^3}+\sqrt{a}-\sqrt[4]{a}-1}=(\sqrt a - 1)(\sqrt[4] a + 1)\\a-\sqrt a = \sqrt a(\sqrt a - 1)\\\\{(\sqrt a - 1)(\sqrt[4] a + 1)\over \sqrt a(\sqrt a - 1)} {\sqrt a\over \sqrt[4]a + 1} + 1 = 2$