NCERT · Class 8 · Mathematics · Algebraic Expressions and IdentitiesFind the product of $(x + 5)$ and $(x - 5)$.
Step-by-Step Solution
Using identity $(a + b)(a - b) = a^2 - b^2$: $(x + 5)(x - 5) = x^2 - 5^2 = x^2 - 25$.
Detailed Options Breakdown
Option : $x^2 - 25$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $x^2 + 25$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Algebraic Expressions and Identities.
Option 2: $x^2 - 10x - 25$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Algebraic Expressions and Identities.
Option 3: $x^2 - 5x + 25$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Algebraic Expressions and Identities.
💡 Study Guide: This question tests core syllabus concepts from Algebraic Expressions and Identities. For formulas, key summaries, and mock exam reference guides, read the full Algebraic Expressions and Identities Revision Notes.