\(12a^2-7ab-b^2\) का सही गुणनखंड चुनिए।
Choose the correct factorisation of \(12a^2-7ab-b^2\).
Explanation opens after your attempt
D. ( (4a- b)(3a+b) )
Concept
For (-7ab), write \(12a^2-8ab+ab-b^2\). Exam tip: when options look similar, confirm by expansion.
Why this answer is correct
The correct answer is D. ( (4a- b)(3a+b) ). For (-7ab), write \(12a^2-8ab+ab-b^2\). Exam tip: when options look similar, confirm by expansion.
Exam Tip
(-7ab) के लिए \(12a^2-8ab+ab-b^2\) बनता है। परीक्षा में विकल्प समान दिखें तो फैलाकर पुष्टि करें।
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