Question

factorise x⁴ - 2x - 1​

Answer 1

Answer:

x(x³-3)

it is your answer

Answer 2

Answer:

x²-2x-1

=x²-(1+1)x-1

=x²-x-x+1

=x(x-1)-1(x-1)

=(x-1)(x-1)

=(x-1)²

hope you understand it...