Solve this plz Share with your friends Share 2 Amber Unknown answered this This is the first answer. 4 View Full Answer Sakshi .... answered this Thanx 3 Sajag answered this 2nd part ans 2 Harshit Chhatwal answered this x2+1/x2=7 x2+1/x2+2=7+2 (adding 2 on both the sides) x2+1/x2+2=9 (x+1/x)2=32 x+1/x=3 (x+1/x)3=x3+1/x3+3(x+1/x)=33 x3+1/x3+3(3)=27 x3+1/x3=27-9 x3+1/x3=18 2 Harshit Chhatwal answered this x+1/x=7 (x+1/x)3=73 x3+1/x3+3(x+1/x)=27 x3+1/x3+3(3)=27 x3+1/x3+9=27 x3+1/x3=18 1 Sayantani Ghosh answered this The first answer is here 1 Snoweryadav answered this This is the third one... 1 Aryan answered this 1. We know that (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ac = 280 + 2(ab + bc + ac) = 280 + 2(9/2) = 280 + 9 = 289 Therefore (a + b + c)2 = 289 Therefore a + b + c = 17 Therefore (a + b + c)3 = 173 = 4913. 0