Question

if a + b is equal to √5 and a- b is equal to √3 then what is the value of a square + b square​

Answer 1

Step-by-step explanation:

(a+b)² =(√5)²

=>a² +2ab +b² =5.......(I)

(a-b)² =(√3)²

=>a² -2ab +b² =3......(ii)

(I)+(ii)=>

2a² +2b² =8

=>a² +b² =4