Question

Упростить выражения на фотке

Answer 1

а)

$= \frac{5 \times \frac{1}{ {a}^{6} } \times 3 \times {( {a}^{ \frac{3}{2}})}^{4} }{ \frac{1}{ {a}^{3} } } = \frac{15 \times \frac{1}{ {a}^{6} } \times {a}^{6} }{ \frac{1}{ {a}^{3} } } = \frac{15}{ \frac{1}{ {a}^{3} } } = 15 {a}^{3}$

б)

$= {( {x}^{ - 1} + {y}^{3} )}^{2} - \frac{2 {y}^{3} }{x} = {x}^{ - 2} + \frac{2 {y}^{3} }{x} + {y}^{6} - \frac{2 {y}^{3} }{x} = {x}^{ - 2} + {y}^{6} = \frac{1}{ {x}^{2} } + {y}^{6}$