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4a minus b MCQ Questions for Class 9

4a minus b se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with 4a minus b.

Question 1/2 Expert Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 64

( (4a-b)3 ) में \(a^2b\) वाले पद का गुणांक क्या है?

What is the coefficient of the term containing \(a^2b\) in ( (4a-b)3 )?

Explanation opens after your attempt
Correct Answer

A. - (48)सही गुणांक

Step 1

Concept

In the cube of a difference, ( -3(4a)2b=-48a-2b ) appears. Exam tip: check sign and coefficient together.

Step 2

Why this answer is correct

The correct answer is A. - (48) / सही गुणांक. In the cube of a difference, ( -3(4a)2b=-48a-2b ) appears. Exam tip: check sign and coefficient together.

Step 3

Exam Tip

घटाव के घन में ( -3(4a)2b=-48a-2b ) आता है। परीक्षा में चिह्न और गुणांक साथ जाँचें।

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Question 2/2 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 65

( (4a-b)2 ) में मध्य पद क्या होगा?

What is the middle term in ( (4a-b)2 )?

Explanation opens after your attempt
Correct Answer

C. (-8ab)

Step 1

Concept

The middle term is \(-2\cdot4a\cdot b=-8ab\). Exam tip: apply (2ab) with the negative sign.

Step 2

Why this answer is correct

The correct answer is C. (-8ab). The middle term is \(-2\cdot4a\cdot b=-8ab\). Exam tip: apply (2ab) with the negative sign.

Step 3

Exam Tip

मध्य पद \(-2\cdot4a\cdot b=-8ab\) है। परीक्षा में ऋण चिह्न सहित (2ab) लगाएँ।

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