human
Factorise a quadratic expression in the form x² + bx + c Factorise \( x^{2}+15 x+36 \) Factorise \( x^{2}+15 x+36 \) \( (x+7)(x+18) \) \( (x+7)(x+18) \)
gpt
Believes that when factorising a quadratic, they can choose any two numbers that add to give the coefficient of x