Question

find k if X + 1 is a factor of PX is equal to x cube 3 - 3xsquare + kx​

Answer 1

Answer:

If x+1 Then x = (-1)

P(x)=x^3-3x^2+kx

P(-1)=(-1)^3-(-1)^2+k(-1) = 0

= -1 -1 -1k = 0

= -2 -1k = 0

= k = -2/-1

= k =2

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Answer 2

Answer:

answer is - 4

Step-by-step explanation:

x^3 - 3x^2 + kx = 0

(-1)^2 - 3 * (-1)^2 + k * -1 = 0

-1 – 3 – k = 0

-4 – k = 0

-k = 4

k = - 4