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26-10-2021
Mathematics

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Plzz Help Me Questions No 2 i and I plzz

Plzz Help Me Questions No 2 i and I plzz class=

Respuesta :

26-10-2021

Answer:

i) k = -6

Step-by-step explanation:

12 = 2(1)^3 + 5(1)^2 - k(1) - 1 (Substitute 1 for x & set equal to 12)

12 = 2 + 5 - k - 1 (Clean)

12 = 6 - k (Add and substract numbers on the right side)

6 = -k (Subtract)

k = -6 (Divide by -1)

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