If a+b+c = 9 and ab+bc+ca = 23 , then a²+b²+c² =. ?
Answers
Answered by
0
Answer:
great
Step-by-step explanation:
a+b+c = 9 and ab+bc+ca = 23 , then a²+b²+c² =. ?
Answered by
0
Answer:
81
Step-by-step explanation:
3+3+3=9,3²+3²+3²=81
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