Question

solve it : cheak weather 7+3x is a factor of 3x³+7x !? any please quickly help me with this please ​

Answer 1

Answer

Apply remainder theorem
7+3x=0
3x=−7 or x=
-7/3

​


Replace x= -7/3
​
in the equation, we get
3x
3
+7x =3(
3
−7
​
)
3
+7(
3
−7
​
)

=3(
27
−343
​
)−
3
49
​


=
9
343
​
−
3
49
​


This value is not equal to zero then 7+3x is not a factor of
3x
3
+

Answer 2

Hope the attachment helps you...