B. a²-b² / a²-b²
ExplanationStep 1: This is the difference of squares identity. Step 2: (a+b)(a-b)=a²-b². Step 3: Connect factors with opposite signs to difference of squares.
Step 1: यह difference of squares identity है। Step 2: (a+b)(a-b)=a²-b² होता है। Step 3: Opposite signs वाले factors को difference of squares से जोड़ें।
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