Question

A = {x: x2 - 4x - 5 = 0} Write the following sets in roster (Tabular)​

Answer 1

Step-by-step explanation:

Given

x:x2−4x−5=0

⇒x2−5x+x−5=0

⇒x(x−5)+1(x−5)=0

∴x−5=0 or x+1=0

→x=5→x=−1

∴ Given set in roster (Tabular) Form is A1={5,−1}

Answer 2

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