根号2*2根号2=?

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根号2*2根号2=?根号2*2根号2=?根号2*2根号2=?根号2*2根号2=2×(根号2×根号2)=2×2=44√2*2√2=2*√4=44(√2)×(2√2)=2×2=44√2*2√2=2*(√2

根号2*2根号2=?
根号2*2根号2=?

根号2*2根号2=?
根号2*2根号2
=2×(根号2×根号2)
=2×2
=4

4

√2 * 2√2 = 2*√4 = 4

4

(√2)×(2√2)
=2×2
=4

4

√2*2√2=2*(√2*√2)=2*2=4

等于4啊!

4

(√2)•(2√2)
=2(√2)•(√2)
=2(√2)²
=2•2
=4

4 不解释