Check whether 7 + 3 X is a factor of 3x3 + 7 x

1.	Check whether 7 + 3 X is a factor of 3x3 + 7 x
Answer» 7 + 3x : x= -7/3Evaluting value in 3x³ + 7x3× (-7/3)³ + 7 × (-7/3)=-343/9 + (-49/3)=-354 - 147 / 9- 501 /9Therefore, 7+3x is not a factor of 3x³ + 7x.

Discussion