Question

What is x cube-4x-15 divided by x-3

Answer 1

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Answer 2

Answer:

When the given polynomial is divided by a linear polynomial then the remainder is constant. <br> Let the required number to be added be k. <br> Let

. <br> Then ,

. <br> By factor theorem , p (x) will be divisible by (x-3) if p (3) = 0. <br> Now ,

<br>

. <br> Hence , the required number to be added

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