Question

1. Calculați.

a)2³•2⁵:2⁶.

b(2³)⁴:2¹⁰.

c)(2⁹)³:(2³)⁸.

d)2³²:(2²)³.

e)3²⁵:3⁵².

f)(4+3¹⁹²:2¹⁸⁸):5

g)(1+2•2²•2⁴):(2⁷+1)

h)[(3³)¹²:4²⁵-56]:5.

i)8¹⁶:(2•3⁵•2¹⁰)³-2¹-2⁰​

Answer 1

Răspuns:

a)2^2×2^5÷2^6=2^(2+5-6)=2^1=2

b)2^12÷2^10=2^2=4

c) 2^27÷2^24=2^3=8

d) 2^9÷2^6=2^3=8

e)3^32÷3^25=3^7

f)(4+2^4)÷5=20÷5=4

g)(1+2^7)÷(2^7+1)=1

h)(3^36÷3^32-56)÷5=(3^4-56)÷5=(81-56)÷5=25÷5=5

i)2^48÷(2^15)^3-2-1=2^48÷2^45-2-1=2^3-2-1=8-2-1=5