First find the antiderivative: \(\int (2 + x - x^2) dx = 2x + \frac{x^2}{2} - \frac{x^3}{3} + C\). Evaluate from -1 to 2: \([2(2) + \frac{(2)^2}{2} - \frac{(2)^3}{3}] - [2(-1) + \frac{(-1)^2}{2} - \frac{(-1)^3}{3}] = [4 + 2 - \frac{8}{3}] - [-2 + \frac{1}{2} + \frac{1}{3}] = [6 - \frac{8}{3}] - [-\frac{3}{2} + \frac{1}{3}] = [\frac{10}{3}] - [-\frac{7}{6}] = \frac{10}{3} + \frac{7}{6} = \frac{20}{6} + \frac{7}{6} = \frac{27}{6} = \frac{9}{2} = 4.5\)

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Zambia

• ivwananji siwale – 29 pts

• Distance of A Straight Line
• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
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