Question

c) Write given set in roster form A={x:x2-4x-5=0}
Question 2​

Answer 1

The set will have the elements as the solutions of x

2

−4x−5=0

=>x

2

−5x+x−5=0

=>x(x−5)+1(x−5)=0

=>(x=5,−1)

So, the set is { 5,−1 }