a) \(\frac{1}{x}\) + 2= (\(\frac{1}{x}\) +2)(x2 +1)
b) (x+2)(x-3)(17x2-17x+8)=(x+2)(x-3)(x2 -17x+33)
c) (4x2 -3x-18)2 = (4x2 +3x)2
d) \(\frac{1}{9}\) (x-3)2 - \(\frac{1}{25}\) (x+5)2=0
e)(\(\frac{2x}{3}\) +1)2=(\(\frac{3x}{2}\) -1)2
f) (x+1+\(\frac{1}{x}\) )2 = (x-1-\(\frac{1}{x}\) )2