计算:x²-10x+8

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/01 02:43:37
计算:x²-10x+8

计算:x²-10x+8
计算:x²-10x+8

计算:x²-10x+8
x²-10x+8
=(x-5)²+8-25
=(x-5)²-17
=(x-5+√17)(x-5-√17)

x²-10x+8 =
x²-10x+25 - 17=
(x-5)² -17