Răspuns
Explicație pas cu pas:
a) 2√3 × 3√2 = 6√6
b) 7√5 × ( - 3√2 ) = - 21√10
c) 17√5 × ( - 2√3 ) = - 34√15
d) ( - 6√3 ) × ( - 2√3 ) = 12 √9 = 12 × 3 = 36
e) - 4√2 × 3√2 = - 12√4 = - 12 × 2 = - 24
f) 7√6 × ( - 2√2 ) = - 14√12 = - 14 × 2√3 = - 28√3
g) √6 × 2√5 × ( - 3√10 ) = - 6√300 = - 6 × 10√3 = - 60√3
h) - √8 × √12 × ( - 4√20 ) × ( - 6√2 ) =
= - 2√3 × 2√3 × ( - 4 × 2√5 ) × ( - 6√2 ) =
= - 4 × 3 × ( - 8√5 ) × ( - 6√2) =
= + 96√5 × ( - 6√2 ) =
= - 576√10
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i) √51 × ( - 3√3 ) × ( - 4√17 ) × ( - 10√2 ) =
= ( √3 × √17 ) × 12 × ( √3 × √17 ) × ( - 10√2 ) =
= - 120 × 3 × 17 × √2 =
= - 6 120√2