Question

if a+b+c=B and ab+bc+ca=25
then find a + b² + c²​

Answer 1

Step-by-step explanation:

(a + b + c)² = a² + b² + c² + 2(ab + bc + ac)

now put the correct values and find

Answer 2

Answer:

a^2+b^2+c^2=(a+b+c)^2-2(ab+bc+ca)

=B^2-50