exam Maths Puzzle Numerical Ability

I cannot figure out how to rewrite this logarithm as one simplified logarithm

log(6x)+5log(3x)-3log(9x)

Please help.

xandra

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exam Other Question

k^2+10k+24 over k^2+11k+30 * k^2+5k over k^2-2k-24

help Write a polynomial function with the given zeros.
1. -1,1,1,-6
2. 2,-2,-3
3. 2,1,3
4. 2,3,-3,-1
5. 0,-8,2
6. -10,0,2
PLEASE HELP ME! I NEED TO SEE THE WORK FOR THIS TOO. THANK YOU VERY MUCH