\(x^2-19x+90\) को गुणनखंडित करें।

Factorise \(x^2-19x+90\).

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. ((x-9)(x-10))सही गुणनखंड

Step 1

Concept

Here (-9+(-10)=-19) and ((-9)(-10)=90). In exams use two negative signs when the constant is positive and the middle term is negative.

Step 2

Why this answer is correct

The correct answer is B. ((x-9)(x-10)) / सही गुणनखंड. Here (-9+(-10)=-19) and ((-9)(-10)=90). In exams use two negative signs when the constant is positive and the middle term is negative.

Step 3

Exam Tip

(-9+(-10)=-19) और ((-9)(-10)=90) है। परीक्षा में धनात्मक स्थिर पद और ऋणात्मक मध्य पद पर दोनों चिन्ह ऋणात्मक रखें।

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Mathematics Answer, Explanation and Revision Hints

\(x^2-19x+90\) को गुणनखंडित करें। / Factorise \(x^2-19x+90\).

Correct Answer: B. ((x-9)(x-10)) / सही गुणनखंड. Explanation: (-9+(-10)=-19) और ((-9)(-10)=90) है। परीक्षा में धनात्मक स्थिर पद और ऋणात्मक मध्य पद पर दोनों चिन्ह ऋणात्मक रखें। / Here (-9+(-10)=-19) and ((-9)(-10)=90). In exams use two negative signs when the constant is positive and the middle term is negative.

Which concept should I revise for this Mathematics MCQ?

Here (-9+(-10)=-19) and ((-9)(-10)=90). In exams use two negative signs when the constant is positive and the middle term is negative.

What exam hint can help solve this Mathematics question?

(-9+(-10)=-19) और ((-9)(-10)=90) है। परीक्षा में धनात्मक स्थिर पद और ऋणात्मक मध्य पद पर दोनों चिन्ह ऋणात्मक रखें।