Question

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Answer 1

Answer:

Refer to the above attachment ✌️

Answer 2

Answer:

14 .

[ i ] x-3 = 0 => x= 3

f(x) = k²x³ - x² + 3x - 1

f(3) = k²*3³ - 3² + 3*3 - 1 = 0

27k² - 9 + 9 - 1 = 0

27k² - 1 = 0

k = √1/27

k = 1/3√3 Answer

[ ii ] x+2 = 0 => x= -2

f(x) = x³ + 6x² + 4x + k

f(-2) = (-2)³ + 6*(-2)² + 4*(-2) + k = 0

-8 + 24 - 8 + k = 0

k = -24 + 16

k = -8 Answer