Question

Check whether 6x^3+x^2-26x-25 by 3x - 7

Answer 1

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=>

Here P(x) =3x3+7x and zero of polynomial of 7+3x=0

x=-7/3

So,

P(x)= 3x3+7x

= 3*(-7/3)3+7*(-7/3).

= 3* -343/27+7*(-7/3)

= -343/9-49/3= -343-147/9

= -490/9

Since the remainder obtained is not zero.

So, 7+3x is not a factor of 3x3+7x.

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