Question

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

Step-by-step explanation:

with the values that you provided

${1 + { - 2 }^{2} + {3}^{2} + 1 \times - 2 + - 2 \times 3 + 3 \times 1 = 9$

9 is the answer