Question

Sa se rezolve ecuatiile exponentiale:

Answer 1

e) (5/3)^(2x^2-20) = (3/5)^4
(5/3)^(2x^2-20) = (5/3) ^-4
2x^2-20=-4
2x^2=16 => x^2=8 => x=2rad2 sau -2rad2

f)3•2^(x^2-5)=2^4•3
x^2-5=4 => x^2=9 => x=3 sau x=-3

g) 5^x/2=5^4/3
=> x/2=4/3 => x=8/3