Let f(x) and g(x) be polynomials as shown below.

which of the following is true about f(x) and g(x)?

f(x) and g(x) are closed under multiplication because when multiplied, the result will be a polynomial.

f(x) and g(x) are closed under multiplication because when multiplied, the result will not be a polynomial.

f(x) and g(x) are not closed under multiplication because when multiplied, the result will not be a polynomial.

f(x) and g(x) are not closed under multiplication because when multiplied, the result will be a polynomial.

i got 10.28 but that rounds up to 10.3

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.

what are you trying to solve here

step-by-step explanation: