Cross Method Factorization Quiz
因式分解[math]ax^2+bx+c[/math]。程度1中，[math]a[/math]固定為1；程度2中，[math]a[/math]為1或11以內的質數；程度3中，[math]a[/math]為16以內的合成數。
- Target Group (Age)
- 12 – 15
- Language
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.
