Question

check whether 7—3x is a factor of 7x—3x3​

Answer 1

Step-by-step explanation:

Apply remainder theorem

7+3x=0

3x=−7 or x= 3−7

Replace x= 3−7

in the equation, we get

3x 3 +7x =3( 3−7 )

3 +7( 3−7 )

=3( 27−343 )− 349= 9343 − 349

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

plz mark me brainlyest