Question

Cat face 2 radical din 3-1 totul la 2???Va rog ajutati-ma!!!

Answer 1

Salut! ^_^

(2√3-1)²

=(2√3)²-2·2√3·1+1²

=12-4√3+1

=13-4√3

ʕ•ᴥ•ʔ♕Succes!♕ʕ•ᴥ•ʔ

Answer 2

aplici formula (a-b)^2

(2√3-1)^2=

=(2√3)²-2·2√3·1+1^2=

=12-4√3+1=

=13-4√3