Question

Is 7+3x is a factor 3x3+7x​

Answer 1

X=-7/3 substitute the value of X in the p(X) and the answer will be -40/3

Answer 2

✯✯ QUESTION ✯✯

Is $7+3x$ is a factor ${3x}^{3}+7x$

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✰✰ ANSWER ✰✰

$⇢\textbf{7+3x=0}$

$⇢\textbf{3x=-7}$

$⇢x=\dfrac{-7}{3}$

$⇢Putting\:x=\dfrac{-7}{3}$

$⇢{3x}^{3}+7x$

$⇢3\dfrac{(-7)}{3}^{3}+7\dfrac{(-7)}{3}$

$⇢\dfrac{-1029}{3}-\dfrac{-49}{3}$

$⇢\dfrac{-1029-49}{3}⟹\dfrac{-1078}{3}$

No,7+3x is not a factor of 3x³+7x