\"\"

\

The function is \"straight.

\

The coefficient of \"x is 1.

\

The possible rational zeros must be a factor of the constant term 300.

\

The possible rational zeros are

\

\"\"

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\

    x

\ 		\

     1

\ 		\

     1

\ 		\

  \"\"80

\ 		\

\"\"300

\
\

 \"\"1

\ 		\

     1

\ 		\

    0

\ 		\

  \"\"80

\ 		\"\"240
\

    5

\ 		\

     1

\ 		\

    6

\ 		\

  \"\"50

\ 		\"\"550
\

 \"\"5

\ 		     1 \

  \"\"4

\ 		  \"\"60 \

    0

\
\

    1

\ 		\

     1

\ 		\

    2

\ 		\

  \"\"78

\ 		\

\"\"378

\
\

\"\"

\

There are one zero at x = 5 ,the equation is \"straight

\

\"x

\

\"x                 (Rewrite: \"minus)

\

\"x             (Apply Factors on left side)

\

\"open

\

\"x

\

\"x\"\"

\

The rational zeros are \"5.