human
Solve quadratic equations using factorisation in the form (x + a)(x + b)  The area of the trapezium on the right is \( 12 \mathrm{~cm}^{2} \). ![A trapezium with the parallel sides a and b labelled x -1 and x + 3 and the perpendicular height as x.]() Based on the information given, Adam writes this formula:
\(x^{2}+x=12\)

What are the two solutions to this equation? \( \begin{array}{c}x=4 \\ \text { and } \\ x=-3\end{array} \)
gpt
Believes the solutions of a quadratic equation are the constants in the factorised form