Question

me ajudem!!!!!!!!!!!!!!!!!!!!!!!​

Answer 1

a) √2 - √8 = √2 - √4 . √2 = √2 - 2√2 = -√2

b) √54 + √96 = √6.9 + √6.16 = 3√6 + 4√6 = 7√6

c) √63 - √28 = √9.7 - √4.7 = 3√7 - 2√7 = √7

d) -√12 + 6√3 = -√4.3 + 6√3 = -2√3 + 6√3 = 4√3

e)

$\sqrt[5]{64} - 3 \sqrt[5]{2} = \sqrt[5]{ {2}^{5}.2 } - 3 \sqrt[5]{2} = 2 \sqrt[5]{2} - 3 \sqrt[5]{2} = - \sqrt[5]{2}$

f) 2√27 - √75 = 2√9.3 - √25.3 = 2.3√3 - 5√3 = 6√3 - 5√3 = √3