Question

(z^2 - 3z) (z + 1) ​

Answer 1

Today : Saturday, 07 November 2020

Hour: 20.04 WIB (Indonesia)

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(z² - 3z) (z + 1)

= z³ + z² - 3z² - 3z

= z³ - 2z² - 3z

Answer 2

z³ - 2z² - 3z

Explanation:

(z² - 3z)(z+1) = (z²*z) + (z²*1) + (-3z*z) + (-3z*1) = z³ + z² - 3z² - 3z

= z³ -2z² - 3z