किस विकल्प में (\left\(x^{2}-4\right\)) को सही रूप में लिखा गया है?
Which option correctly writes (\left\(x^{2}-4\right\))?
Explanation opens after your attempt
Correct Answer
A. \((x-2)(x+2)\)
Concept
We use (x^{2}-4=x^{2}-2^{2}=(x-2)(x+2)). In exams, remember the difference of squares form (\(a^{2}-b^{2}\)).
Why this answer is correct
The correct answer is A. \((x-2)(x+2)\). We use (x^{2}-4=x^{2}-2^{2}=(x-2)(x+2)). In exams, remember the difference of squares form (\(a^{2}-b^{2}\)).
Exam Tip
(x^{2}-4=x^{2}-2^{2}=(x-2)(x+2))। परीक्षा में वर्गों के अंतर की पहचान (\(a^{2}-b^{2}\)) याद रखें।
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