Question

b) (√3 - 1)²
Por favor?

Answer 1

13-

a)

(2+√3)²

=2²+2*2*√3+√3²

=4+4√3+3

=7+√3

b)

(√3-1)²=√3² -2*1*√3 +1

=3-2√3+1

=4-2√3

c)

(5+2√3)²

5²+2*5*2√3 +(2√3)²

25+10√3+4*3

37+10√3

d)

(√3+1)*(√3-1)=√3²-1² =3-1=2