Question

a+b+c=9,ab+bc+ca=24,a²+b²+c²=?

Answer 1

(a+b+c)^2 =
${a}^{2} + {b}^{2} + {c}^{2} + 2(ab + bc + ca)$
(9)^2 = a^2+ b^2 +c^2+ 2 (24)
81 = a^2+ b^2 +c^2 + 48
81 - 48 = a^2+ b^2 +c^2
33 = a^2+ b^2 +c^2

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Answer 2

Answer:

hi friend

Explanation:

here is your question to answer

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