Răspuns :
Răspuns:
b) 3√10•(√2-2√5)-2√10•(4√2-7√5) =
= √10•[3(√2-2√5)-2(4√2-7√5)]
= √10•(3√2-6√5-8√2+14√5)
= √10•(-5√2-6√5+14√5)
= √10•(-5√2+8√5)
EVERGREEN
Răspuns:
b) 3√10•(√2-2√5)-2√10•(4√2-7√5) =
= √10•[3(√2-2√5)-2(4√2-7√5)]
= √10•(3√2-6√5-8√2+14√5)
= √10•(-5√2-6√5+14√5)
= √10•(-5√2+8√5)
EVERGREEN