Question

Упростите
$(3 sqrt[6]{a}+ sqrt[6]{b} )(3sqrt[6]{a}- sqrt[6]{b})+ sqrt[9]{ 5b^{8} } : sqrt[9]{5 b^{5} }$

Answer 1

= (3 (6)√a)² - ((6)√b)² + (9)√(5b^8/(5b^5))=
=9 ∛a - ∛b + (9)√b³ =
=9 ∛a - ∛b + ∛b = 9 ∛a