davidh90901 davidh90901

02-12-2018
Mathematics

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Show work plz for I can understand

Show work plz for I can understand class=

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jimrgrant1 jimrgrant1

02-12-2018

Answer:

c = - 2

Step-by-step explanation:

Since (z - 3) is a factor of p(z) then z = 3 is a root and p(3) = 0

p(3) = 3³ + 9c - 4(3) + 3 = 0, hence

27 + 9c - 12 + 3 = 0 ⇒ 9c = - 18 ⇒ c = - 2

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