यदि ((x-7)2) का क्षेत्रफल मॉडल बनाया जाए, तो विस्तार कौन सा होगा?

If an area model of ((x-7)2) is made, what will be the expansion?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \(x^2-14x+49\)

Step 1

Concept

In ((x-7)2), the middle term is (-14x) and the last term is (49). Exam tip: remember \(2\cdot 7\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-14x+49\). In ((x-7)2), the middle term is (-14x) and the last term is (49). Exam tip: remember \(2\cdot 7\).

Step 3

Exam Tip

((x-7)2) में बीच का पद (-14x) और अंतिम पद (49) है। परीक्षा में \(2\cdot 7\) याद रखें।

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Mathematics Answer, Explanation and Revision Hints

यदि ((x-7)2) का क्षेत्रफल मॉडल बनाया जाए, तो विस्तार कौन सा होगा? / If an area model of ((x-7)2) is made, what will be the expansion?

Correct Answer: A. \(x^2-14x+49\). Explanation: ((x-7)2) में बीच का पद (-14x) और अंतिम पद (49) है। परीक्षा में \(2\cdot 7\) याद रखें। / In ((x-7)2), the middle term is (-14x) and the last term is (49). Exam tip: remember \(2\cdot 7\).

Which concept should I revise for this Mathematics MCQ?

In ((x-7)2), the middle term is (-14x) and the last term is (49). Exam tip: remember \(2\cdot 7\).

What exam hint can help solve this Mathematics question?

((x-7)2) में बीच का पद (-14x) और अंतिम पद (49) है। परीक्षा में \(2\cdot 7\) याद रखें।