Най­ди­те зна­че­ние вы­ра­же­ния
а) 4 ⋅√2 + √50 - √18
б) √9 ⋅ ( 2 √3+ √ 12)
в) ( √3 - √2 ) ( √ 3 + √ 2 )
сравните
3⋅√7 и 4⋅√5
сокращение
а ) 3⋅3√4b-2
---------------
2√3⋅2 √b -√ 2

освободитесь от корня
2
-----
√7
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