human
Solve quadratic equations using factorisation in the form x(x + b)  Solve this equation, giving all solutions:
\(
k^{2}-8 k=0
\) \( \begin{array}{c}k=-8 \\ \text { or } \\ k=8\end{array} \)
gpt
Thinks x^2 - a^2x is a valid form of difference of two squares