# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | Oct-Nov | (P1-9709/11) | Q#11

Question The diagram shows a shaded region bounded by the y-axis, the line y = −1 and the part of the curve y = x2 + 4x + 3 for which x ≥ −2. i. Express y=x2+4x+3 in the form y=(x+a)2+b, where a and b are constants. Hence, for x ≥ −2, express x in […]