Question

If a+b+c=9 and ab+ bc+ ca=23find the value a2 b2 c2​

Answer 1

Answer:

the answer...

Step-by-step explanation:

(a+b+c)2=a2+b2+c2+2(ab+bc+ca)

(9)2=a2+b2+c2+2(23)

81=a2+b2+c2+46

a2+b2+c2=46-81

=-35

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