Question

Решите уравнение
2^х-5 + 2^х-3 =80

Answer 1

2ˣ(2-⁵+2-³)=80

2ˣ=80:(1/32+1/8)

2ˣ=80:(5/32)

2ˣ=80*32/5

2ˣ=16*32

2ˣ=2⁴*2⁵

2ˣ=2⁹⇒х=9