maths about Quadratic formula

👨🏻‍🏫 學術台數學

用戶19864

2008-09-10 4:08 am

請教教我啊!!thx~~
maths about Quadratic formula
1. -8(2x+1)(2x+1)= -64

回答 (2)

用戶7639

2008-09-10 11:02 pm

✔ 最佳答案

As follow AS~~~

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[匿名]

2008-09-10 4:52 am

(2x+1)^2=8
2x+1=開平方8
2x=開平方8-1
x=（開平方8-1）/2

參考: me~

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