Question

Please solve the 23rd question with proper explanation. I will mark you as brainliest

Answer 1

Answer:

if a+b+c=5 and ab+bc+ca=10 then prove that a3+b3+c3-3abc= -25

Step-by-step explanation:

The answer is a3+b3+c3= 25

25-3abc

25-3X2

25-50

-25 the problem is solved

Answer 2

Answer:proved

Step-by-step explanation:

Let,a+b=a

b+c=b

c+a=c

L.H.S

(a+b)3+(b+c)3+(c+a)3-3(a+b)+(b+c)(c+a)