Question

2√5(√20-3√5) решите плиз

Answer 1

2√ 5 * ( √ 20 - 3 √ 5 ) = 2 √ 5 * ( 2 √ 5 - 3 √ 5 ) = 2 √ 5 * ( - √ 5 ) = - 2 * 5 = - 10

Answer 2

спасибо

Answer 3

2√ 5 * ( √ 20 - 3 √ 5 ) = 2 √ 5 * ( 2 √ 5 - 3 √ 5 ) = 2 √ 5 * ( - √ 5 ) = - 2 * 5 = - 10