Question

a= 1/3+2root2, b= 1/3- 2root2
what will be ' asquare b + a bsquare

Answer 1

a^2=(1/3+2√2)^2

b^2=(1/3-2√2)^2

(1/3)^2+2(1/3)(2√2)+(2√2)^2+(1/3)^2-2(1/3)(2√2)+(2√2)^2

(1/9)+4*2+1/9+4*2

1/9+8+1/9+8

1/9+1/9+16

(1+1+144)/9

146/9=16.222