if x+y=a, x^2+y^2=b^2 and x^3+y^33 =c^3 prove that a 3 +2c^3 =3ab^2 - Maths - Algebraic Identities and Factorisation

Question

if x+y=a, x^2+y^2=b^2 and x^3+y^33 =c^3 prove that a 3 +2c^3 =3ab^2

Yash Ranjan Mishra · Accepted Answer

Dear Student
Assuming we need to prove that
a3+2c3=3ab2
The solution is given below
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5cf2b5ab9c452%20jpg">
Regards

if x+y=a, x^2+y^2=b^2 and x^3+y^33 =c^3 prove that a 3 +2c^3 =3ab^2.