\(x^2-7x+12=0\) और \(x^2-9x+20=0\) में कौनसा मूल समान है?

Which root is common to \(x^2-7x+12=0\) and \(x^2-9x+20=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=4)

Step 1

Concept

The roots of the first equation are (3,4), and the roots of the second are (4,5). In exams, solve both equations separately and compare the common root.

Step 2

Why this answer is correct

The correct answer is A. (x=4). The roots of the first equation are (3,4), and the roots of the second are (4,5). In exams, solve both equations separately and compare the common root.

Step 3

Exam Tip

पहले समीकरण के मूल (3,4) और दूसरे के मूल (4,5) हैं। परीक्षा में दोनों समीकरण अलग हल करके समान मूल देखें।

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Mathematics Answer, Explanation and Revision Hints

\(x^2-7x+12=0\) और \(x^2-9x+20=0\) में कौनसा मूल समान है? / Which root is common to \(x^2-7x+12=0\) and \(x^2-9x+20=0\)?

Correct Answer: A. (x=4). Explanation: पहले समीकरण के मूल (3,4) और दूसरे के मूल (4,5) हैं। परीक्षा में दोनों समीकरण अलग हल करके समान मूल देखें। / The roots of the first equation are (3,4), and the roots of the second are (4,5). In exams, solve both equations separately and compare the common root.

Which concept should I revise for this Mathematics MCQ?

The roots of the first equation are (3,4), and the roots of the second are (4,5). In exams, solve both equations separately and compare the common root.

What exam hint can help solve this Mathematics question?

पहले समीकरण के मूल (3,4) और दूसरे के मूल (4,5) हैं। परीक्षा में दोनों समीकरण अलग हल करके समान मूल देखें।