Question

(a) x 3 + 4x + 2 is divisible by x + 2 plz help me fast

Answer 1

Step-by-step explanation:

Since f(x) is exactly divisible by x - 2, we can say that x - 2 is a factor of f(x).

By the factor theorem,we know that since x - 2 is a factor of f(x), f(2) must be zero.

So, now:

f(2) = 0

2^3 + 4(2^2) - p(2) + 8 = 0

8 + 16 - 2p + 8 = 0

32 - 2p = 0

2p = 32

p = 32 / 2

p = 16

Answer 2

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