Expert Mathematics Quadratic Equations Class 10 Level 33

यदि (x-2+(m-2)x+25=0) की जड़ें समान हैं, तो (m) के मान क्या हैं?

If (x-2+(m-2)x+25=0) has equal roots, what are the values of (m)?

Explanation opens after your attempt
Correct Answer

A. (12) और (-8)(12) and (-8)

Step 1

Concept

For equal roots, ((m-2)2-100=0). Thus \(m-2=\pm10\), so (m=12) or (m=-8).

Step 2

Why this answer is correct

The correct answer is A. (12) और (-8) / (12) and (-8). For equal roots, ((m-2)2-100=0). Thus \(m-2=\pm10\), so (m=12) or (m=-8).

Step 3

Exam Tip

समान जड़ों के लिए ((m-2)2-100=0) होगा। इसलिए \(m-2=\pm10\), अतः (m=12) या (m=-8)।

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Mathematics Answer, Explanation and Revision Hints

यदि (x-2+(m-2)x+25=0) की जड़ें समान हैं, तो (m) के मान क्या हैं? / If (x-2+(m-2)x+25=0) has equal roots, what are the values of (m)?

Correct Answer: A. (12) और (-8) / (12) and (-8). Explanation: समान जड़ों के लिए ((m-2)2-100=0) होगा। इसलिए \(m-2=\pm10\), अतः (m=12) या (m=-8)। / For equal roots, ((m-2)2-100=0). Thus \(m-2=\pm10\), so (m=12) or (m=-8).

Which concept should I revise for this Mathematics MCQ?

For equal roots, ((m-2)2-100=0). Thus \(m-2=\pm10\), so (m=12) or (m=-8).

What exam hint can help solve this Mathematics question?

समान जड़ों के लिए ((m-2)2-100=0) होगा। इसलिए \(m-2=\pm10\), अतः (m=12) या (m=-8)।

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