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mina [271]
3 years ago
14

Which is a factor of z3 - z2 - 9z + 9?

Mathematics
1 answer:
lara31 [8.8K]3 years ago
3 0
Z²(z-1)-9(z-1)
= (z²-9)(z-1)
= (z+3)(z-3)(z-1)
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