Question

【題目】解方程：(x-3)2=2x-6.(因式分解法)

Answer 1

【答案】x1=3,x2=5.

【解析】(x-3)2=2x-6,

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

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

(x-3) (x-5)=0,

x-3=0,x-5=0,

x1=3，x2=5.