Question

In the U.K.), ortransportation (used in the U.S.), is the movement ofhumans, animals and goods from one location toanother. In other words, the action of transport isdefined as a particular movement of an organism orthing from a point A (a place in space) to a point B.sport include air, land (rail and road), water, cable, pipelinehe field can be divided into infrastructure, vehicles andransport enables trade between people, which is essential forent of

Answer 1

Explanation:

Solving a quadratic equation:

ax² + bx + c = 0

The solution is given by:

`x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}`

In this question:

2x² - 4x - 12 = 0

Dividing everything by x

x² - 2x - 6 = 0

So a = 1, b = -2, c = -6

`x=\frac{-(-2)\pm\sqrt[]{(-2)^2-4\ast1\ast6}}{2}=\frac{4\pm\sqrt[]{28}}{2}=\frac{4\pm\sqrt[]{4\ast7}}{2}=\frac{4\pm2\sqrt[]{7}}{2}`
`\frac{4\pm2\sqrt[]{7}}{2}=2\pm\sqrt[]{7}`