\(81r^2-18rs+s^2\) को गुणनखंडित कीजिए।

Factorise \(81r^2-18rs+s^2\).

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. ((9r-s)2)

Step 1

Concept

It is ((9r)2-2\cdot9r\cdot s+s-2). Exam tip: choose the answer by the sign of the middle term.

Step 2

Why this answer is correct

The correct answer is A. ((9r-s)2). It is ((9r)2-2\cdot9r\cdot s+s-2). Exam tip: choose the answer by the sign of the middle term.

Step 3

Exam Tip

यह ((9r)2-2\cdot9r\cdot s+s-2) है। परीक्षा में मध्य पद के चिह्न से उत्तर चुनें।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

\(81r^2-18rs+s^2\) को गुणनखंडित कीजिए। / Factorise \(81r^2-18rs+s^2\).

Correct Answer: A. ((9r-s)2). Explanation: यह ((9r)2-2\cdot9r\cdot s+s-2) है। परीक्षा में मध्य पद के चिह्न से उत्तर चुनें। / It is ((9r)2-2\cdot9r\cdot s+s-2). Exam tip: choose the answer by the sign of the middle term.

Which concept should I revise for this Mathematics MCQ?

It is ((9r)2-2\cdot9r\cdot s+s-2). Exam tip: choose the answer by the sign of the middle term.

What exam hint can help solve this Mathematics question?

यह ((9r)2-2\cdot9r\cdot s+s-2) है। परीक्षा में मध्य पद के चिह्न से उत्तर चुनें।