Question

nr nat x pt care 2 la puterea x+1 =8​

Answer 1

Răspuns:

2ˣ⁺¹=8

2ˣ⁺¹=2³

x+1=3=>x=3-1=>x=2

Answer 2

Răspuns:

$2^{x+1}=8\\\\2^{1} *2^{x}=2^{3}\\\\2^{x}=\frac{2^{3} }{2^{1} }\\\\2^{x}=2^{2}\\\\x=2$

Explicație pas cu pas: