Write the solution set of the equation x2 + x – 2 = 0 in roster form.
Solving the given equation
x2 + x – 2 =0
x2 + 2x – x – 2 = 0
x(x + 2) – 1 (x + 2) = 0
(x – 1) (x + 2) = 0
So, x = 1, – 2
Therefore, the solution set of the given equation can be written in roster form as
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
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