Question

Efectuati:

a) 2√8 - 5√32 + 4√2 =
b) 4√3 + 1√12 =
c) 5√2 + 1√8 =
d) 1√20 - 12√5 + 1√45 =

Answer 1

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Answer 2

a) 2√8 - 5√32 + 4√2 = 4√2 - 20√2 + 4√2 = -12√2

b) 4√3 + 1√12 = 4√3 + 2√3 = 6√3

c) 5√2 + 1√8 = 5√2 + 2√2 = 7√2

d) 1√20 - 12√5 + 1√45 = 2√5 - 12√5 + 3√5 = -7√5