किस दृश्य मॉडल में \(x^2+2xy+y^2-z^2\) को पहले एक वर्ग और फिर वर्गों के अंतर के रूप में पढ़ा जा सकता है?
In which visual model can \(x^2+2xy+y^2-z^2\) be read first as a square and then as a difference of squares?
Explanation opens after your attempt
Correct Answer
B. ((x+y)2-z-2)square minus square
Concept
First (x-2+2xy+y-2=(x+y)2), then \(z^2\) is subtracted. In exams first group the large part as a perfect square.
Why this answer is correct
The correct answer is B. ((x+y)2-z-2) / square minus square. First (x-2+2xy+y-2=(x+y)2), then \(z^2\) is subtracted. In exams first group the large part as a perfect square.
Exam Tip
पहले (x-2+2xy+y-2=(x+y)2) है, फिर \(z^2\) घटता है। परीक्षा में बड़े समूह को पहले पूर्ण वर्ग बनाएं।
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