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Choose the factorised form of (x^2+4x-45).(x^2+4x-45) का गुणनखंड रूप चुनिए।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( (x+9)(x-5) )( (x+9)(x-5) )
The numbers (9) and (-5) have sum (4) and product (-45). Exam tip: with opposite signs, the larger magnitude gives the middle term sign.(9) और (-5) का योग (4) और गुणनफल (-45) है। परीक्षा में अलग चिन्हों में बड़े परिमाण का चिन्ह मध्य पद देता है।
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