exam Maths Puzzle Numerical Ability

Please help me to expand the following :

3k^-3c^2 (k^3/c^2 - 5k^-3c^-2)

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exam Other Question

Hi. Can I please have some help with this problem. I've been having some trouble with solving.

Express the statement as an equation and use the given information to find the con Solve for x:

ln(x+1)-ln(x-2)=lnx