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• The bill system allows for UK legislation brought forward by the government to be debated in both the House of Lords and Commons where amendments can be put forward and ...

Look for the corresponding letters to each number. So, as an example those with a. remember that the + or - before it tells us whether it is to be added or subtracted

There are 2a-a+3a so that = 4a...

At first this equation seems tricky, but we can perform a clever substitution to simplify it. We notice that if let y = 2^x, then we can rewrite this as:

8(y^2) - 9y + 1 = 0

This now becomes...

This question relies on knowledge of algebraic expressions and highest common factors.

What is the highest common factor which goes into the expressions 8y and 4y^2.

The answer is 4y. This i...

Complex numbers have three primary forms: the general form, z=a+ib; the polar form, z=r(cosθ+isinθ); and the exponential form, z=rexp(iθ). To convert from the general form to either form you need to find ...