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Factorise (x^2-19x+90).(x^2-19x+90) को गुणनखंडित करें।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((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.(-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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