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  2. Check whether 7 + 3x is a factor of 3x^3 + 7x.
# NCERT

Q3. Check whether 7 + 3x is a factor of 3x^3 + 7x..

Answers (1)
R Riya

When we divide  3x^3 + 7x  by  7 + 3x. 

We can also write  3x^3 + 7x  as  3x^3 +0x^2+ 7x

By long division method, we will get 



 Since the remainder is not equal to  0 

Therefore,  7 + 3x  is not a factor of  3x^3 + 7x

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