Question

If a + b + c = 6 and ab + bc + ca = 12, find the
value of a² + b2 + c2​

Answer 1

Answer:

1, 2, and 3

Step-by-step explanation:

1+2+3=6 and (1+2)+(2+3)+(3+1)=12

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Answer 2

Answer:

please use the formula of (ABC) to the whole power 2 +2ab+2bc+2ca.