I need note-taking tips.

use highlighters and go through your notes to highlight important info. I use different highlights for different sections to help separate the information. The different colors on different parts of the notes really help me know what the info for the notes was about and it's good to review them by going over them in color. Hopefully this helps :)

answer:

your answer is: c. 196 7/8 in^3.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.