Question

va rog sa ma ajutati!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 3¹⁷·7¹⁷ - 21¹⁷ = (3·7)¹⁷ - 21¹⁷ = 21¹⁷-21¹⁷ = 0

b) 5²⁰·3²⁰-15²¹:15 = (5·3)²⁰-15²¹⁻¹ = 15²⁰-15²⁰ = 0

c) 3¹⁸·8¹⁸:(6¹⁶·4¹⁶) = (3·8)¹⁸:(6·4)¹⁶ = 24¹⁸:24¹⁶ =

=24¹⁸⁻¹⁶ = 24² = 576

d) 15³⁸:5³⁸-(3¹⁹)² = (15:5)³⁸-3¹⁹ˣ² = 3³⁸-3³⁸ = 0

e) 14²⁷:7²⁷:2^⁵^² = (14:7)²⁷ : 2²⁵ = 2²⁷:2²⁵ = 2²⁷⁻²⁵ = 2² = 4

f) 10⁶⁴:2⁶⁴-5^⁴^³ = (10:2)⁶⁴ - 5⁶⁴ = 5⁶⁴-5⁶⁴ = 0

g) 15ⁿ⁺²:5ⁿ⁺²:3ⁿ = (15:5)ⁿ⁺² : 3ⁿ = 3ⁿ⁺²:3ⁿ =

= 3ⁿ⁺²⁻ⁿ = 3² = 9

h) 2ⁿ⁺²·3ⁿ⁺²:6ⁿ = (2·3)ⁿ⁺²:6ⁿ = 6ⁿ⁺²:6ⁿ = 6ⁿ⁺²⁻ⁿ = 6² = 36

i) 30ⁿ⁺³:10ⁿ⁺³-3ⁿ·3³ = (30:10)ⁿ⁺³ - 3ⁿ⁺³ = 3ⁿ⁺³-3ⁿ⁺³ = 0