Please tell question 5 Share with your friends Share 0 Vikas Mahala answered this Dear student, given x+y = 8 ... (i) x-y = 2 ... (ii) now we know that x2 + y2 = (x+y)2 + (x-y)2then by eqn (i) and eqn (ii)2x2 + 2y2 = 2×82 + 2×22 = 2×64 + 2×4 = 132 Regards 0 View Full Answer