Question

2^-x=2^x-2 log2 (3-2x)=1
3^x=27^2x-1 log3 (4+x)=3
16^x=4^3-x log5 (3-2x)=2
16^x= 16 la puterea x etc
Va roogg muuultt!!

Answer 1

Răspuns:

le-ai scis la un loc

iti fac cateva , de model

Explicație pas cu pas:

2^(-x)=2^(x-2)

-x=x-2

2=2x

x=1

3^x=(3³)^(2x-1)

3^x=3^(6x-3)

6x-3=x

5x=3

x=3/5

log2(3-2x)=1

C.E. 3-2x>0 3>2x 2x<3 x<2/3

2^1=3-2x

3-2x=2

1=2x

x=1/2<2/3 ., convine

log3(4+x)=3

C.E 4=x>0....x>-4

3³=4+x

x+4=27

x=27-4

x=23>-4 convine

etc...

etc