एक वर्ग मॉडल में ((3x-2y)2) के लिए दो घटाई गई पट्टियों का संयुक्त क्षेत्रफल कितना होगा?
In a square model for ((3x-2y)2), what will be the combined area of the two removed strips?
Explanation opens after your attempt
B. (12xy)
Concept
Both strips are (3x) by (2y), so (12xy) is subtracted. Exam tip: understand the negative middle term through two strips.
Why this answer is correct
The correct answer is B. (12xy). Both strips are (3x) by (2y), so (12xy) is subtracted. Exam tip: understand the negative middle term through two strips.
Exam Tip
दोनों पट्टियां (3x) by (2y) की हैं इसलिए कुल (12xy) घटता है। परीक्षा में ऋण मध्य पद को दो पट्टियों से समझें।
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