Решить уравнение (8—24).
8. [4] lg(x + V3) + Ig(x - V3) = 0.
9. [4] log, (x — 2) + log, (x — 3)
10. [4] Ig (x? — 9) ~ Ig(x - 3)= 0.
11, [4] logy (x — 1) — log, (2x — 11) = log, 2.
12. [5] log, (2x? - Tx + 6) — log; (x - 2) =
13, [5] log, (x? ~ x) — log, x = log, 3.
14. [5] log, —2— = log, x. 15. Bl lg +e. Igx.
16. [6] их? + х-5) = (5х) + ШТ.
2 5х
17. [7] logs (x — 1) + 2log,(17 + x) = 7 + log, 9.
18. [8] log, x + log p; x — log, x = 6. a
19. [4] ово. log, (x — 5) = 0. 20. [5] log, log, log, (x? + 2x) = 0.
21, [4] log?,, x ~ logg, x -2=0.
22, [4] log3(1~ x) - 2 log,(1- x) = 3.
23. [5] 2log, x = Blog, x. 24. [6] 2log, x - 5log,2 = 3.
Решить систему уравнений (25—30).
25. [7] [log,x-logsy=2, 26. [6] [ щх-щу= 142,
2y?+ x-11=0. 3x-y=10.