Question

please answer this question...​

Answer 1

Answer:

29

Step-by-step explanation:

given a+b+c = 9

ab+bc+ca = 26

a^2 + b^2 + c^2 = ?

(a+b+c)^2 = a^2 + b^2 + c^2 +2(ab+bc+ca)

(9)^2 = a^2 + b^2 + c^2 + 2(26)

81 = a^2 + b^2 + c^2 + 52

81-52 = a^2 + b^2 + c^2

a^2 + b^2 + c^2 = 29

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Answer 2

Answer:

what nonsence yaarrrr