\(x^2-19x+90=0\) के मूल क्या हैं?

What are the roots of \(x^2-19x+90=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=9,10)

Step 1

Concept

((x-9)(x-10)=0), so (x=9) and (x=10). In exams, roots are obtained by taking opposite signs of factors.

Step 2

Why this answer is correct

The correct answer is A. (x=9,10). ((x-9)(x-10)=0), so (x=9) and (x=10). In exams, roots are obtained by taking opposite signs of factors.

Step 3

Exam Tip

((x-9)(x-10)=0), इसलिए (x=9) और (x=10) हैं। परीक्षा में गुणनखंड के विपरीत चिन्ह से मूल मिलते हैं।

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Mathematics Answer, Explanation and Revision Hints

\(x^2-19x+90=0\) के मूल क्या हैं? / What are the roots of \(x^2-19x+90=0\)?

Correct Answer: A. (x=9,10). Explanation: ((x-9)(x-10)=0), इसलिए (x=9) और (x=10) हैं। परीक्षा में गुणनखंड के विपरीत चिन्ह से मूल मिलते हैं। / ((x-9)(x-10)=0), so (x=9) and (x=10). In exams, roots are obtained by taking opposite signs of factors.

Which concept should I revise for this Mathematics MCQ?

((x-9)(x-10)=0), so (x=9) and (x=10). In exams, roots are obtained by taking opposite signs of factors.

What exam hint can help solve this Mathematics question?

((x-9)(x-10)=0), इसलिए (x=9) और (x=10) हैं। परीक्षा में गुणनखंड के विपरीत चिन्ह से मूल मिलते हैं।