Multiple choice If t2 - 4t + 1 = 0, then the value of (t3 + 1/t3) is 48 52 64 None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation t2 - 4t + 1 = 0 or t2 + 1 = 4t t + 1/t = 4 Or (t + 1/t + 3 (t + 1/t) = 64 or t3 + 1/t3 = 64 - 3 x 4 = 52