human
Given the sketch of a curve in the form (x + a)(x + b), work out its factorised form Which of the following could be the equation of this curve? ![A quadratic curve with a minimum turning point at (-2, -1). The curve crosses the x axis at the points (-3,0) and (-1,0). It crosses the y axis at (0,3).]() \( y=(x+1)(x-3) \)
gpt
Does not understand the link between the sign of the root and the sign in the bracket