Question

Check whether 7+3x is factor of 3xsquare+7x

Answer 1

Answer:

put 7+3x=0

3x=-7

x=-7/3

now put x in 3x²+7x

3(-7/3)+7(-7/3)

-21/3-49/3

-7-16.33333...

=-9.3333333...ans

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