Question 990459
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Write it step by step:

{{{1/5}}}{{{(3*ln(x+1) + 2*ln(x-1) - ln(7))}}} = {{{1/5}}}{{{(ln((x+1)^3) + ln((x-1)^2) - ln(7))}}} = {{{1/5}}}{{{ln(((x+1)^3*(x-1)^2)/7)}}} = {{{ln((((x+1)^3*(x-1)^2)/7)^(1/5))}}}


And one important note: when you operate with the logarithm, use ln as the symbol (not In).