Question

<br />$if a + b +c = 7 \: and \: {a}^{2} + {b}^{2} + {c}^{2} = 25 \: then \: find \: the \: value \: of \: {a}^{3} + {b}^{3 } + {c}^{3} + abc.$<br />​

Answer 1

HI....

ANSWER IS IN ATTACHMENT

$91$

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hope this would help