What are the solution(s) of the quadratic equation x2 = -98?

a x = ± 7 i 2

b x = ± 2 i 7

c x = ± 2 i 7
d x=+6i 3

A

Step-by-step explanation:

x2 = -98

x =+-√-98

x = +-√49 • 2 • -1

x = +-7√2 • -1

x = +-7i√2

(Note: i = √-1 and i^2 = -1, so you can interchange the values)

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.