a)√10+2√6-3√10+√6
b)∛-3+2∛9-4∛3-5∛9
c) 2√11-∛-11+7∛11-√11
d) -6(√14-2)-"4√14/2" <- to ma być w ułamku
e)2(√13+√3)-4(√13-3)
f)-(∛2-2∛6+3(5∛2-∛-6)
proszę Was zróbcie mi to na czwartek ; ** z góry bardzo dziękuję ;)
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a)√10+2√6-3√10+√6 =
= 1√10 - 3√10 +2√6 +1 √6 =
= -2√10 +3√6
b)∛-3+2∛9-4∛3-5∛9 =
= ∛-3 - 4∛ 3 +2∛9 - 5∛9 =
= - ∛3 - 4∛3 - 3∛9 =
= -5∛3 -3∛9
c) 2√11-∛-11+7∛11-√11=
= 2√11 - √11+ 7∛11 - ∛-11 =
= √11 + 7∛11 - (-∛11) =
= √11 + 7∛11 +∛11 =
= √11 + 8∛11
d) -6(√14-2)-"4√14/2" <- to ma być w ułamku =
= -6√14 +12 - 2√14 =
= -8√14 +12
e)2(√13+√3)-4(√13-3)=
= 2√13 +2√3 - 4√13 +12 =
= 2√13 -4√13 +2√3 +12 =
= -2√13 +2√3 +12
f)-(∛2-2∛6+3(5∛2-∛-6)=
= - [ ∛2 - 2∛6 + 15∛2 - 3∛-6 ] =
= - [ 17∛2 -2∛6 - 3*(-∛6) ] =
= - [ 17∛2 - 2∛6 +3∛6 ] =
= - [17∛2 +∛6 ] =
= - 17∛2 - ∛6