Write the solution set of the equation $

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Target Exam

CUET

Subject

Mathematics

Chapter

Sets

Question:

Write the solution set of the equation $x^2 + x – 2 = 0$ in roster form.

Options:

{1, – 2}

{1, 2}

{-1, – 2}

{2, – 2}

Correct Answer:

{1, – 2}

Explanation:

The correct answer is Option (1) → {1, – 2}

The given equation can be written as

(x – 1) (x + 2) = 0, i. e., x = 1, – 2

Therefore, the solution set of the given equation can be written in roster form as {1, – 2}.