Question

simplify (3x + 1 ) ( 3x - 1 ) ( 9x² + 1 ) ( 81x² + 1 )​

Answer 1

Answer:

the question is wrong it must be

(3x + 1)(3x - 1)(9x^2 + 1)(81x^4 + 1)

Answer 2

(3x-1)^2 +9x^2(81x^2+1)+1(81x^2+1)(9x^2-1)+(721x^2+9x^2)+(81x^2+1)

remove the brackets

820x^2=0

x^2=820

x=√820. or x=28.635

hope it is helpful to you