Find the value of a²+b²+c², when |a+b+c=5 and ab+bc+ca=-4|a+b+c=5 and ab+bc+ca=-2

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In this video we will find the value of a²+b²+c² when:
(I) a+b+c=5 and ab+bc+ca=-4
(II) a+b+c=5 and ab+bc+ca=-2
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Class 9th Math Exercise 4.4 question 1 part i,ii
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