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What is the expanded form of (x² − 4)(x² + 4)?(x² − 4)(x² + 4) का विस्तृत रूप क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: x⁴ − 16x⁴ − 16
Apply the difference-of-squares identity (a − b)(a + b) = a² − b², with a = x² and b = 4. This gives (x²)² − 4² = x⁴ − 16.वर्गों के अंतर का सूत्र (a − b)(a + b) = a² − b² लागू करें, जहाँ a = x² और b = 4 हैं। इससे (x²)² − 4² = x⁴ − 16 मिलता है।
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