Question

Which of the following expressions is polynomial?

$1. \: x {5} - 2x {3} + x + 7$
$2. \: y3 - \sqrt{3y}$
$3. \: \sqrt[5]{z} - 6$
$4. \: x - \frac{1}{x}$
$5. \: x108 - 1$
$6. \: \sqrt[3]{x} - 27$
$7. \: x - 2 + 2x - 1 + 3$
plzzz answer me first, it's urgent...​

Answer 1

Answer:

1and7

Step-by-step explanation:

likeand mark as brian least

Answer 2

Answer:

1 & 7 is the correct answer.......

hope it will help you please mark the answer as brainlist and don't forget to follow me for such type of answers