Question

Calcule


a- √2.(3+√2)=

b- √5.(2+√5)=

c- 2√5.(1-3√5)=

d- (√3+1).(√3+3)=

e- (1-√2).(1.2√2=

Answer 1

a) 3√2+√4=3√2+2
b) 2√5+√25=2√5+5
c) 2√2-6√25=2√2-6.5=2√2-30
d)√9+3√3+√3+3=3+4√3+3=6+4√3
e) (1-√2).(1-√2)=1-√2-√2+√4=1-2√2+2=3-2√2