Medium Mathematics Quadratic Equations Class 10 Level 29

समीकरण \(x^2+9x+20=0\) को गुणनखंड रूप में कौन-सा लिखा जा सकता है?

Which factor form can represent \(x^2+9x+20=0\)?

Explanation opens after your attempt
Correct Answer

A. ((x+4)(x+5)=0)

Step 1

Concept

\(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).

Step 2

Why this answer is correct

The correct answer is A. ((x+4)(x+5)=0). \(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).

Step 3

Exam Tip

\(4\cdot5=20\) और (4+5=9) है। इसलिए सही गुणनखंड ((x+4)(x+5)) हैं।

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Mathematics Answer, Explanation and Revision Hints

समीकरण \(x^2+9x+20=0\) को गुणनखंड रूप में कौन-सा लिखा जा सकता है? / Which factor form can represent \(x^2+9x+20=0\)?

Correct Answer: A. ((x+4)(x+5)=0). Explanation: \(4\cdot5=20\) और (4+5=9) है। इसलिए सही गुणनखंड ((x+4)(x+5)) हैं। / \(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).

Which concept should I revise for this Mathematics MCQ?

\(4\cdot5=20\) and (4+5=9). Therefore the correct factors are ((x+4)(x+5)).

What exam hint can help solve this Mathematics question?

\(4\cdot5=20\) और (4+5=9) है। इसलिए सही गुणनखंड ((x+4)(x+5)) हैं।

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