Question

prove that x+2 is a factor of

p(x)=2x³+4x²5x+42
​

Answer 1

Answer:

Apply remainder theorem

=>x + 1 =0

=> x = - 1

Replace x by – 1 we get

=>2x3 + x2 – 2x – 1

=>2(-1)3 + (-1)2 -2(-1) - 1

=> -2 + 1 + 2  - 1

=> 0

Explanation:

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Answer 2

Explanation:

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