Question

scieti sub forma unui patrat:
a) 3+2√2
b) 3-2√2
c) 27+10√2
d) 9-2√14
e) 21+8√5

Answer 1

a) 3+2√2 = 1+2*1*√2+2 = (1+√2)^2
b) 3-2√2=1-2*2*√2+2=(1-√2)^2
c)27+10√2= 25 + 2*5*√2+2=(5+√2)^2
d) 9-2√14= 7-2*√7*√2+2 = (√7-√2)^2
e) 21+8√5= 16+ 2*4*√5+5=(4+√5)^2