book Maths Puzzle Numerical Ability

Express as a single logarithm: ln 8 - ln2

these kinda problems get on my nerves , help me please

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book Other Question

Explain the diference between a logarithm of a product and the product of logarithms and give examples of each
simplify: (x^2-6x+8)/(x^2+3x-28) *(x^2+6x-7)/(x^2-3x+2)