exam Maths Puzzle Numerical Ability

1)ln(x+2)+ln(x-3)=
2)log4(6x^2-x-15)-log4(3x-5)=
3)4log5^6=

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exam Other Question

Find four consecutive even integers such that the product of the first and fourth is equal to the square of the second. Find the value of "r" so the line that passes through each pair of points has the given slope:
(5, 9), (r, -3), m = -4
thx for your help