Question

Check wether 7+3x is factor of 3x3+7x

Answer 1

Step-by-step explanation:

3X+7=0

3X= -7

X= -7/3

F(X) = 3x³+7x

= 3* (-7/3)³ + 7* -7/3

= 3* (243/27) + 7* -7/3

= 17 + (-49/3)

So hence 7+3x is not a factor of the polynomial.

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