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Which is the complete factorised form of (a^4-16b^4)?(a^4-16b^4) का पूर्ण गुणनखंड रूप कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((a-2b)(a+2b)(a^2+4b^2))((a-2b)(a+2b)(a^2+4b^2))
First (a^4-16b^4=(a^2-4b^2)(a^2+4b^2)), then (a^2-4b^2) factors further. Exam tip: stop only after complete factorisation.पहले (a^4-16b^4=(a^2-4b^2)(a^2+4b^2)), फिर (a^2-4b^2) टूटता है। परीक्षा में पूर्ण गुणनखंड तक रुकें।
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