CBSE · Class 10 · Mathematics · Quadratic EquationsThe roots of the equation $x^2 - 9 = 0$ are:
Step-by-Step Solution
$x^2 - 9 = 0 \Rightarrow x^2 = 9 \Rightarrow x = \pm \sqrt{9} = \pm 3$. Thus, the roots are $+3$ and $-3$.
Detailed Options Breakdown
Option : $\pm 3$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $3, 3$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Quadratic Equations.
Option 2: $-3, -3$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Quadratic Equations.
Option 3: $\pm 9$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Quadratic Equations.
💡 Study Guide: This question tests core syllabus concepts from Quadratic Equations. For formulas, key summaries, and mock exam reference guides, read the full Quadratic Equations Revision Notes.