Question

if x +2 is a factor of x cube + 2px square then px - 1 then value of p is

Answer 1

Answer:

(X+2) = 0

X= -2

substitute in the polynomial

(-2)³+2p(-2)² +p(-2) -1 = 0

-8 + 8p -2p -1 =0

6p-9 =0

6p = 9

p = 9/6

p= 3/2. (c) is the answer

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Answer 2

Answer:

Step-by-step explanation:

(X+2) = 0

X= -2

substitute in the polynomial

(-2)³+2p(-2)² +p(-2) -1 = 0

-8 + 8p -2p -1 =0

6p-9 =0

6p = 9

p = 9/6

p= 3/2. (c) is the answer

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