( (3a-2)(3a+8) ) में (a) का गुणांक क्या है?

What is the coefficient of (a) in ( (3a-2)(3a+8) )?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (18)

Step 1

Concept

The cross terms are \(3a\cdot8=24a\) and \(-2\cdot3a=-6a\). Total is (18a).

Step 2

Why this answer is correct

The correct answer is A. (18). The cross terms are \(3a\cdot8=24a\) and \(-2\cdot3a=-6a\). Total is (18a).

Step 3

Exam Tip

क्रॉस पद \(3a\cdot8=24a\) और \(-2\cdot3a=-6a\) हैं। कुल (18a) है।

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Mathematics Answer, Explanation and Revision Hints

( (3a-2)(3a+8) ) में (a) का गुणांक क्या है? / What is the coefficient of (a) in ( (3a-2)(3a+8) )?

Correct Answer: A. (18). Explanation: क्रॉस पद \(3a\cdot8=24a\) और \(-2\cdot3a=-6a\) हैं। कुल (18a) है। / The cross terms are \(3a\cdot8=24a\) and \(-2\cdot3a=-6a\). Total is (18a).

Which concept should I revise for this Mathematics MCQ?

The cross terms are \(3a\cdot8=24a\) and \(-2\cdot3a=-6a\). Total is (18a).

What exam hint can help solve this Mathematics question?

क्रॉस पद \(3a\cdot8=24a\) और \(-2\cdot3a=-6a\) हैं। कुल (18a) है।