Question

Evaluate this sum polynomial

Answer 1

HI there !

(a-b)² = a² -2ab + b²

a = 2x

b = 1/x

(2x - 1/x)² = (2x)² - 2 × 2x × 1/x + (1/x)²
                = 4x² - 4x/x + 1/x² 
               

Answer 2

Hey there !!!

(2x-1/x)²

given polynomial is of the form (a-b)²=a²-2ab+b²

So,

(2x-1/x)² = 4x²-2*2x*1/x+1/x²

              =(4x²+1/x²-4)

              =(4x²*x²-4x²+1)/x²

              p(x)=(4x⁴-4x²+1)/x²