计算:(√6+√5)²-(√6-√5)²

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计算:(√6+√5)²-(√6-√5)²计算:(√6+√5)²-(√6-√5)²计算:(√6+√5)²-(√6-√5)²原式=[(√6+√5

计算:(√6+√5)²-(√6-√5)²
计算:(√6+√5)²-(√6-√5)²

计算:(√6+√5)²-(√6-√5)²
原式=[(√6+√5)+(√6-√5)][(√6+√5)-(√6-√5)]
=(2√6)(2√5)
=4√30

(√6+√5)²-(√6-√5)²
=(√6+√5+√6-√5)(√6+√5-√6+√5)
=2√6 *2√5
=4√30