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Factorise x2-a2-9b2+6ab |
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Answer» X2-(a2+3b2-6ab) x2-(a2+3b2-2×a×3b) *(a-b)2=a2+b2-2ab x2-(a-b)2 *a2-b2=(a+b)(a-b) (X+a-b){x-(a-b)} (x+a-b)(x-a+b) ANS........ |
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