Question

please answer my question ​

Answer 1

Answer:

Ans- 27

Step-by-step explanation:

Refer to the attachment :)

Answer 2

Answer:

A^3+B^3+C^3-3ABC = 27

Step-by-step explanation:

FIRST,

(A+B+C)^2=A^2+B^2+C^2+2AB+2BC+2CA

9^2=A^2+B^2+C^2+2(AB+BC+CA)

81=A^2+B^2+C^2+2*26

81-52=A^2+B^2+C^2

A^2+B^2+C^2=29

A^3+B^3+C^3-3ABC= (A+B+C)(A^2+B^2+C^2-AB-BC-CA)

                                  = 9*29-26

                                  =  9*3

                                  = 27