Question

is 7+3x is the factor of 3x³+ 7x​

Answer 1

Answer:

yes because after differentiation of 3x²+7x we get 7+3x

Answer 2

Given: 3x³+7x

To find: check whether 3x+7 a factor of the given polynomial.

Step-by-step explanation:

On dividing,  3x³+7x by 3x+7,  we are getting 7x-7x² as remainder.

∴ 3x+7 is not the factor of given polynomial, for 3x+7 to be factor of given polynomial , remainder should be 0.

Answer: No, 3x+7 is not a factor of the given polynomial.