👤

Rezolvati in multimea nunerelor reale ecuatia

Rezolvati In Multimea Nunerelor Reale Ecuatia class=

Răspuns :

2 × 2^x = 4^x-2
2^x+1 = 2^2x-4
x+1=2x-4
x-2x=-4-1
-x=-5
x=5
2 × 2 ^x = 4^(x-2)

2^(x+1)=2^2^(x-2)

x + 1 = 2x - 4

2x - x = 1 + 4

x = 5