Question

Efectuati impartirea la b) c) si d)

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Ex:7
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Answer 1

Explicație pas cu pas:

b ) -2 / 27 x³y⁴ : 1 / 9 x²y =

= -2 / 27 x³y⁴ x 9x²y

= -2 / 3 x³y⁴x²y

= -2 / 3 x³⁺²y⁴⁺¹

= -2 / 3 x⁵y⁵

c ) 0,1a⁴b² : ( -5ab² ) =

= 1 / 10a⁴b² : ( -5ab² )

= -1 / 10a⁴b² : ( 5ab² )

= -1 / 10 x ( a⁴b² / 5ab² )

= -1 / 10 x ( a⁴ / 5a )

= -1 / 10 x ( a³ / 5 )

= -a³ / 50

d ) 1,(5)a⁶b⁷ : 0,(5)a³b⁵ =

= 1 5 / 9a⁶b⁷ : 5 / 9a³b⁵

= 14 / 9a⁶b⁷ : 5 / 9a³b⁵

= 14 / 9a⁶b⁷ x 9 / 5a³b⁵

= 14a⁶b⁷ x 1 / 5a³b⁵

= 14 / 5a⁶⁺³b⁷⁺⁵

= 14 / 5a⁹b¹²