Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Ordnen Sie zu! {(a + b)(a + b)=; (a - b)(a -b) =; (a - b)(a + b)} -> {a² - b²; a² + 2ab + b²; a² - 2ab + b²}
Right answer summary: (a + b)(a + b)= -> a² + 2ab + b²; (a - b)(a -b) = -> a² - 2ab + b²; (a - b)(a + b) -> a² - b²
Question state: todo