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Factor z^2 – 3z – 18.

A. (z + 8)(z – 10)
B. (z + 2)(z – 9)
C. (z – 3)(z – 6)
D. (z + 3)(z – 6)

1 Answer

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The answer seems to be d, as it is the only one which gives you the above expression. 
User Olivier Poulin
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