log8(x + 3) + log8(x + 5) = log8(18x − 6) K = {; } | log4(2x + 6) − log43 = log4(x − 5) K = {} |
log2(3 − x) + log2(1 − x) = log28 K = {} | log3(x2 − 14x + 49) − log3(x2 − 1) = log32 K = {} |
log13(x + 1) + log13(x − 1) = log13(8x − 16) K = {; } | log12(x + 6) − log12(2x + 5) = log124 K = {} |
log5(x − 9) + log5(2x − 1) = log5100 K = {} | log(x2 + 3x + 2) − log(2x − 1) = log(2x − 10) K = {} |