Check weather 7 + 3 x is a factor of 3 x cube + 7 x with full solution
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Let's find the value of x first...
7+3x =0
3x= -7
x= -7/3
Now put the value of x into the equation...
3x^3+7x
3 (-7/3)^3 + 7 (-7/3)
-343/9 + (- 49/3)
(-343-147)/9
-500/9
So value of x doesn't satisfy this eq.
Hence it's not the factor of 3x^3 +7x.
Hope this helps you...
7+3x =0
3x= -7
x= -7/3
Now put the value of x into the equation...
3x^3+7x
3 (-7/3)^3 + 7 (-7/3)
-343/9 + (- 49/3)
(-343-147)/9
-500/9
So value of x doesn't satisfy this eq.
Hence it's not the factor of 3x^3 +7x.
Hope this helps you...
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