3 years ago

Check whether 7+3x is a factor of 3x^3+7x

Mathematics

1 answer:

BartSMP [9]3 years ago

3 0

Answer:

Step-by-step explanation:

refer to picture for solution

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Given g(x) = x squared - x, find g (2/3)

lesantik [10]

Answer:

$\large\boxed{g\left(\dfrac{2}{3}\right)=-\dfrac{2}{9}}$

Step-by-step explanation:

$g(x)=x^2-x=x(x-1)\\\\g\left(\dfrac{2}{3}\right)\to\text{put }\ x=\dfrac{2}{3}\ \text{to the eqation of the function:}\\\\g\left(\dfrac{2}{3}\right)=\left(\dfrac{2}{3}\right)\left(\dfrac{2}{3}-1\right)=\left(\dfrac{2}{3}\right)\left(\dfrac{2}{3}-\dfrac{3}{3}\right)=\left(\dfrac{2}{3}\right)\left(-\dfrac{1}{3}\right)=-\dfrac{(2)(1)}{(3)(3)}=-\dfrac{2}{9}$