# Find the least common multiple of x2 – 2x – 15 and x2 + 2x – 3. (x + 5)(x + 3)(x + 1) (x – 5)(x + 1)(x + 3) (x – 5)(x + 3)(x – 1) (x + 3)(x – 1)(x + 5) z varies inversely with the product of x and y. When x = 2 and y = 4, z = 0.5 What is the value of z when x = 4 and y = 9? 40 1/9 45/2 40/9

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