Răspuns:
Explicație pas cu pas:
a) (3⁷ x 5¹²)² = (3⁷)² x (5¹²)² = 3⁽⁷ˣ²⁾ x 5⁽¹²ˣ²⁾ = 3¹⁴ x 5²⁴
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b) (2¹⁰ x 3⁷)⁹ : ( 2⁵ x 3⁶)¹⁰ =
= (2⁽¹⁰ˣ⁹⁾ x 3⁽⁷ˣ⁹⁾ ) : ( 2⁽⁵ˣ¹⁰⁾ x 3⁽⁶ˣ¹⁰⁾) =
= (2⁹⁰ x 3⁶³) : ( 2⁵⁰ x 3⁶⁰) =
= 2⁽⁹⁰⁻⁵⁰⁾ x 3⁽⁶³⁻⁶⁰⁾ =
= 2⁴⁰ x 3³
