Question

if a=1 , b= -2 and c=3 then find a²+b²+c²+ab+bc+ca​

Answer 1

Answer:

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Answer 2

Answer:

9

Step-by-step explanation:

=(1)^2+(-2)^2+(3)^3+(1)(-2)+(-2)(3)+(1)(3)

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

=17-8

=9