Multiply (x2 + 3x + 5)(2x2 - 2x + 1).​

2 x 4 + 4 x 3 + 5 x 2 − 7 x + 5

Step-by-step explanation:

Anything with a number after the x is squared

Comment if you need work :)

1/2x+5 is your answer

idk

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value