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blondinia [14]
2 years ago
11

Factor z^3 - 2z^2 + 9z - 18

Mathematics
2 answers:
lutik1710 [3]2 years ago
6 0
z^3 - 2z^2 + 9z - 18 = (z^3 - 2z^2 )(+ 9z - 18 )=z^2 (z-2)+9 (z-2) \\  \\ =\boxed {\bf {(z^2+9)(z-2)=(z-3i)(z+3i)(z-2)}}
miss Akunina [59]2 years ago
3 0
<span>z³ - 2z² + 9z - 18=z²(z-2)+9(z-2)=(z-2)(z²+9).</span>
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