Question

Ex 15 DACA ILL FACETI PRIMIT COROANE 50 DE PUNCTE SI MULTUMESC

Answer 1

Răspuns:

3^2x>3^3x;  n-are solutie   e)2^3x=2^6 ;  3x=6 ; x=2 ;g)   x=0 ;  5^0=1

Explicație pas cu pas:

Answer 2

Răspuns:

2ˣ < 3⁴ =>2ˣ <81=>x=1,2,3,4,5,6

2ˣ=3ˣ=>2⁰=3⁰=>1=1=>x=0

3²ˣ >27ˣ=>3²ˣ >(3³)ˣ=>3²ˣ> 3³ˣ=>2x>3x nu are solutie

8ˣ=4³=>(2³)ˣ=(2²)³=>3x=6=>x=6:3=>x=2

5ˣ=1=>5ˣ=5⁰=>x=0

3ˣ⁺²=3³=>x+2=3=>x=3-2=>x=1