\(r^2+13r+36\) के सही गुणनखंड कौन से हैं?

What are the correct factors of \(r^2+13r+36\)?

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

B. ((r+4)(r+9))

Step 1

Concept

(4+9=13) and \(4\times9=36\). Exam tip: choose the correct pair from factors of the last term.

Step 2

Why this answer is correct

The correct answer is B. ((r+4)(r+9)). (4+9=13) and \(4\times9=36\). Exam tip: choose the correct pair from factors of the last term.

Step 3

Exam Tip

(4+9=13) और \(4\times9=36\) है। परीक्षा में अंतिम पद के कारकों से सही जोड़ी चुनें।

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Mathematics Answer, Explanation and Revision Hints

\(r^2+13r+36\) के सही गुणनखंड कौन से हैं? / What are the correct factors of \(r^2+13r+36\)?

Correct Answer: B. ((r+4)(r+9)). Explanation: (4+9=13) और \(4\times9=36\) है। परीक्षा में अंतिम पद के कारकों से सही जोड़ी चुनें। / (4+9=13) and \(4\times9=36\). Exam tip: choose the correct pair from factors of the last term.

Which concept should I revise for this Mathematics MCQ?

(4+9=13) and \(4\times9=36\). Exam tip: choose the correct pair from factors of the last term.

What exam hint can help solve this Mathematics question?

(4+9=13) और \(4\times9=36\) है। परीक्षा में अंतिम पद के कारकों से सही जोड़ी चुनें।