Expert Mathematics Polynomials Class 10 Level 25

यदि \(\alpha\) और \(\beta\) \(x^2-3x-2\) के शून्यक हैं, तो (\(\alpha-\beta\)2) क्या है?

If \(\alpha\) and \(\beta\) are zeroes of \(x^2-3x-2\), what is (\(\alpha-\beta\)2)?

Explanation opens after your attempt
Correct Answer

A. (17)

Step 1

Concept

(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17). This method gives the answer without finding the zeroes.

Step 2

Why this answer is correct

The correct answer is A. (17). (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17). This method gives the answer without finding the zeroes.

Step 3

Exam Tip

(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17)। यह तरीका शून्यक निकाले बिना उत्तर देता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(\alpha\) और \(\beta\) \(x^2-3x-2\) के शून्यक हैं, तो (\(\alpha-\beta\)2) क्या है? / If \(\alpha\) and \(\beta\) are zeroes of \(x^2-3x-2\), what is (\(\alpha-\beta\)2)?

Correct Answer: A. (17). Explanation: (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17)। यह तरीका शून्यक निकाले बिना उत्तर देता है। / (\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17). This method gives the answer without finding the zeroes.

Which concept should I revise for this Mathematics MCQ?

(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17). This method gives the answer without finding the zeroes.

What exam hint can help solve this Mathematics question?

(\(\alpha-\beta\)2=\(\alpha+\beta\)2-4\alpha\beta=32-4(-2)=17)। यह तरीका शून्यक निकाले बिना उत्तर देता है।

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