Question

Calcule.
d) (√11+√2)•(√11-√2)
e) (⁴√3+1)²
f) (2+√2)³​

Answer 1

Resposta:

d) (√11+√2)•(√11-√2) =√11²-√2² =11-2=9

e) (∜3+1)²= ∜3²+2*∜3*1+1 =√3+2*∜ +1

f) (2+√2)³=2³+3*2²*√2+3*2*√2²+√2³

=8+12√2+12+2√2

=13√2+20