\(x^2+bx+15\) 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)?

Author: Muft Shiksha Editorial Team Published:
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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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Mathematics Answer, Explanation and Revision Hints

\(x^2+bx+15\) 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)?

Correct Answer: D. (8). Explanation: द्विपदों के स्थिर भागों का योग (3+5=8) है। इसलिए (b=8) है। / The sum of the constant parts of the binomials is (3+5=8). Therefore (b=8).

Which concept should I revise for this Mathematics MCQ?

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

What exam hint can help solve this Mathematics question?

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