Question

(X-2)²=2-X因式分解

Answer 1

(X-2)²=2-X

(X-2)²+x-2=0

(x-2)(x-2+1)=0

(x-2)(x-1)=0

X²-9=X-3

(x-3)(x+3)=x-3

(x-3)(x+3)-(x-3)

(x-3)(x+3-1)=0

(x-3)(x+2)=0