exam Maths Puzzle Numerical Ability

I need help combining logarithims: A. 2ln(axy)-(1/3)ln(z)+(1/3)ln(b) B. log(P+Q)-2(log(A+B)+Rlog(Z) Thanks, Bennie :)

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exam Other Question
HOW DO YOU SOLVE THIS PROBLEM ALGEBRAICALLY?
1/4=3-2X-1/X+2 Factor completely: x^2+16y^2-a^2-9b^2-8xy+6ab