Sa se rezolve ecuatiile exponentiale

  1. 2x + 2x-1+ 2x-2 = 448.

  2. 32x+1 + 32x - 32x-2 = 315.

  3. 7·3x+1 - 5x+2 = 3x+4 - 5x+3.

  4. 52x - 7x - 7·52x+1 + 5·7x+1 = 0.

  5. 4x - 3x-0,5 = 3x+0,5 - 22x-1.

  6. 4x - 12·2x = 64.

  7. 4x-1 - 3·2x-2 = 1.

  8. 22+x - 22-x = 15.

  9. 8·9x + 6x+1 = 27·4x.

  10. 2·16cosx - 20cosx = 3·25cosx.

  11. 2|3x-5| = 4·8|x-1|.

  12. 53x + 53(1-x) + 15(5x + 51-x) = 216.

  13. 4x + 3x = 7x.

  14. (x + 1)·9x-3 + 4x·3x-3 - 16 = 0.

  15. 76-x = x + 2.

  16. x2 - x + 1 = 2·2x-1 - 4x-1.


Ecuatii exponentiale