Question

PLEASE ANSWER this question step by step​

Answer 1

Answer:

9 is the answer !

Step-by-step explanation:

a=1

b= -2

c= 3

To find, a2 +b2 +c2 +ab+ bc+ ca

=> 1^2 + (-2)^2 + 3^2 + (1x-2) + (-2x3)+ (3x1)

=> 1 + 4 + 9 -2 -6 + 3

=> 17 -8

=> 9

Hope it helps !!!

Please do mark as BRAINLIEST !!!