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Firstly square both sides. This way, we now know that both sides have to be positive

(3x+1)^2 = 1

(3x+1)(3x+1) = 1

Expand the quadratic...

9x^2 + 12x + 4 = 1

9x^2 + 12x ...

So we are meant to rearrange the given equation in a way that it looks like: (x+p)^2 + q This should look familiar. It is obtained by completing the square. Which will be the method I will describe below:...

The conditional is a useful tense, used to express things that could/would/should happen. They are commonly followed by an 'if', for example:

I would go to the supermarket if I had some money - J'i...

If the birthrate in a country is too high, there will be many children, which will lead to a population explosion and a very rapid population growth - which may not be sustainable in terms of space or res...

A caucus includes several meetings between party registers. These meetings can take place over weeks and sometimes months, in which it is discussed and debated over who the should become the next presiden...