( (2x+3)2 ) का सही प्रसार कौन सा है?
What is the correct expansion of ( (2x+3)2 )?
Explanation opens after your attempt
A. \(4x^2+12x+9\)
Concept
Here (a=2x) and (b=3). Since (2ab=12x), the correct expansion is \(4x^2+12x+9\).
Why this answer is correct
The correct answer is A. \(4x^2+12x+9\). Here (a=2x) and (b=3). Since (2ab=12x), the correct expansion is \(4x^2+12x+9\).
Exam Tip
यहाँ (a=2x) और (b=3) है। (2ab=12x) इसलिए सही प्रसार \(4x^2+12x+9\) है।
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