(3√2-1)(√8+2)= (√5+2)²-(3-√5)²= (√20+2)(2√5-1)= (2+√3)²-(√3-1)²=

Question

(3√2-1)(√8+2)=

(√5+2)²-(3-√5)²=

(√20+2)(2√5-1)=

(2+√3)²-(√3-1)²=

Answer 1

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