Question

Check if 7+ 3x is a factor of 3x
3 + 7x.

Answer 1

Answer:

Let us divide (3x3 + 7x) by (7 + 3x). If the remainder obtained is 0, then 7 + 3x will be a factor of 3x3 + 7x. By long division, As the remainder is not zero, therefore, 7 + 3x is not a factor of 3x3 + 7x.

Answer 2

Answer :

Let's us divide (3x^3 + 7 ) by (7x+3)..

If the remainder be obtained be 0

then 7x+3 is factor of (3x^3 + 7 )

By long division method

we obtained that , the remainder is not 0 therefore 7x +3 is not a factor of (3x^3 + 7)

We can also apply remainder theorm instead of long division method..

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