( (3a-4b)2 ) का सही विस्तार चुनिए।
Choose the correct expansion of ( (3a-4b)2 ).
Explanation opens after your attempt
A. \(9a^2-24ab+16b^2\)
Concept
In ( (a-b)2 ) the middle term is negative. Exam tip: keep both coefficient squares and (2ab) correct.
Why this answer is correct
The correct answer is A. \(9a^2-24ab+16b^2\). In ( (a-b)2 ) the middle term is negative. Exam tip: keep both coefficient squares and (2ab) correct.
Exam Tip
( (a-b)2 ) में मध्य पद ऋणात्मक होता है। परीक्षा में गुणांक का वर्ग और (2ab) दोनों ध्यान रखें।
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