Question

Write the roster form of D = {x:x
is an
integer , x2 = 4)​

Answer 1

Answer:

b=2

because if we substitute 2 in the place of X it satisfies x^2 = 4.

Answer 2

Answer:

^,this is power of x

as it is given LHS=RHS

x^2=4 (to satisfy it we will take x= 2)

2^2=4

4=4