来自林珣的问题
Twonumbershaveadifferenceof15andaproductof199.75.Thelargerofthetwonumbersisx.(a)Showthatx2–15x–199.75=0(3)(b)Solvetheequationx2–15x–199.75=0X2是X的2次方
Twonumbershaveadifferenceof15andaproductof199.75.
Thelargerofthetwonumbersisx.
(a)Showthat
x2–15x–199.75=0
(3)
(b)Solvetheequation
x2–15x–199.75=0
X2是X的2次方
1回答
2020-11-08 17:04