\(7x^2-28xy+28y^2\) का गुणनखंड रूप कौन-सा है?

Which is the factorised form of \(7x^2-28xy+28y^2\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (7(x-2y)2)सही रूप

Step 1

Concept

First take out (7), and the remaining (x-2-4xy+4y-2=(x-2y)2). In exams identify the perfect square after the common factor.

Step 2

Why this answer is correct

The correct answer is A. (7(x-2y)2) / सही रूप. First take out (7), and the remaining (x-2-4xy+4y-2=(x-2y)2). In exams identify the perfect square after the common factor.

Step 3

Exam Tip

पहले (7) निकालें और शेष (x-2-4xy+4y-2=(x-2y)2) है। परीक्षा में सामान्य गुणनखंड के बाद पूर्ण वर्ग पहचानें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

\(7x^2-28xy+28y^2\) का गुणनखंड रूप कौन-सा है? / Which is the factorised form of \(7x^2-28xy+28y^2\)?

Correct Answer: A. (7(x-2y)2) / सही रूप. Explanation: पहले (7) निकालें और शेष (x-2-4xy+4y-2=(x-2y)2) है। परीक्षा में सामान्य गुणनखंड के बाद पूर्ण वर्ग पहचानें। / First take out (7), and the remaining (x-2-4xy+4y-2=(x-2y)2). In exams identify the perfect square after the common factor.

Which concept should I revise for this Mathematics MCQ?

First take out (7), and the remaining (x-2-4xy+4y-2=(x-2y)2). In exams identify the perfect square after the common factor.

What exam hint can help solve this Mathematics question?

पहले (7) निकालें और शेष (x-2-4xy+4y-2=(x-2y)2) है। परीक्षा में सामान्य गुणनखंड के बाद पूर्ण वर्ग पहचानें।