1which expression is equivalent to 2√98.√2 a 784 b 28 c 4√98 d 14√2 2. what is 7√27+5√48 in simplified radical form

B

Step-by-step explanation:

  2√98 * √2

= 2√7*7*2*2

=2 *  7  *  2

= 28

41√3

Step-by-step explanation:

  7√27 + 5√48

= 7√3*3*3  +  5√2*2*2*2*3

= 7 * 3√3   +   5 *  2 * 2   √3

=   21√3     +        20√3

= 41√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.