check whether 7-3x is a factor of 3x³+7x
Answers
Answered by
2
Answer:
3x^2+7x
x(3x+7) (taking x as common)
x(3x+7)
ans. Hence proved. that 3x+7 is a factor.
Answered by
5
Answer:
put divisor =0
7-3x=0
-3x=-7
x=7/3
let
p(x) =3xcube+7x
p(7/3) =3(7/3) cube+7(7/3)
3x(343/18) +49/3
343/6+49/3
343+98/6
441/6
73.5
sicne remainder is not 0
7-3x is not a factor of 3x³+7x
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