Question

Please answer this, It's a very important questions, your answer I'll help so much, answer step by step, saranghae

Answer 1

x² + 1/x² =38

substract 2 from both sides

x²+1/x² - 2 = 38-2

x²+1/x² -2*x*1/x = 36

(x-1/x)²=6²

x-1/x =6 or -6

x²+1/x² =38

squaring on both sides

(x²+1/x²)² = 38²

x⁴+1/x⁴ +2 =1444

x⁴+1/x⁴ = 1442