Question

(x平方-2x)平方-2x(2-x)+1因式分解

Answer 1

原式=(x²-2x)²+2(x²-2x)+1
=(x²-2x+1)²
=(x-1)^4

Answer 2

(x^2-2x)^2-2x(2-x)+1
=(x^2-2x)^2+2(x^2-2x)+1
=(x^2-2x+1)^2
=(x-1)^4