ShadierSalt
Apply remainder theorem =>7 + 3x =0 => 3x = - 7 => x = - 7/3 Replace x by - 7/3 we get =>3x3 + 7x =>3(-7/3)3 + 7(-7/3) =>3(-343/27) – 49/3 => (-343/9) – 49/3 This value is not equal to 0 we have checked that 7 + 3x is not a factor of expression 3x3 + 7x
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ButtAhMeD
Here is your answer . I hope it will work.
Answers & Comments
=>7 + 3x =0
=> 3x = - 7
=> x = - 7/3
Replace x by - 7/3 we get
=>3x3 + 7x
=>3(-7/3)3 + 7(-7/3)
=>3(-343/27) – 49/3
=> (-343/9) – 49/3
This value is not equal to 0
we have checked that 7 + 3x is not a factor of expression 3x3 + 7x
I hope it will work.