Y = x^2 y = x^2
In a graph

The graphs of y=x ^2 and y=x+2 intersect at the x-coordinates of −1 and 2. Hence the roots of the quadratic equation x^2−x−2=0 are {−1,2}

Step-by-step explanation:

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answer

a the answer hopes this

step-by-step explanation:

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.