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binomial factors MCQ Questions for Class 9

binomial factors 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 binomial factors.

Question 1/2 Medium Mathematics Exploring Algebraic Identities Quadratic expressions Class 9 Level 75

\(2x^2+3x+1\) का गुणनखंड रूप कौन सा है?

Which is the factorised form of \(2x^2+3x+1\)?

Explanation opens after your attempt
Correct Answer

A. ((2x+1)(x+1))

Step 1

Concept

Expanding gives \(2x^2+2x+x+1=2x^2+3x+1\). Exam tip: verify the option by expansion.

Step 2

Why this answer is correct

The correct answer is A. ((2x+1)(x+1)). Expanding gives \(2x^2+2x+x+1=2x^2+3x+1\). Exam tip: verify the option by expansion.

Step 3

Exam Tip

फैलाने पर \(2x^2+2x+x+1=2x^2+3x+1\) मिलता है। परीक्षा में विकल्प को फैलाकर जांचें।

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Question 2/2 Medium Mathematics Exploring Algebraic Identities Quadratic expressions Class 9 Level 75

\(x^2+bx+15\) के गुणनखंड ((x+3)(x+5)) हों तो (b) कितना होगा?

If the factors of \(x^2+bx+15\) are ((x+3)(x+5)), what is (b)?

Explanation opens after your attempt
Correct Answer

D. (8)

Step 1

Concept

The sum of the constant parts of the binomials is (3+5=8). Therefore (b=8).

Step 2

Why this answer is correct

The correct answer is D. (8). The sum of the constant parts of the binomials is (3+5=8). Therefore (b=8).

Step 3

Exam Tip

द्विपदों के स्थिर भागों का योग (3+5=8) है। इसलिए (b=8) है।

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