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Firstly put the equation into the the form (x+a)(x+b) this will make things easier later on.

Therefore, an equation such as (x+1)² would become (x+1)(x+1)

Next expand the br...

Any geometric series is defined by an initial term a, and a common ratio b. This means that we start with a and multiply by b to get eac...

Standard deviation is the spread of data around the mean value. It is useful for evaluating the spread of a selection of data, and is used to compare multiple ...

A quadratic equation "ax²+bx+c=0" can have 0, 1 or 2 solution.

This depends on the discriminant which is (b^{2 -} 4ac)

If the discriminant is positive, the...

Example question:

Solving Simultaneous Equations

Equation 1: 6x + 2y = 2
Equation 2: 5x - 7y = 6.
Find x and y.

1) Check is if it is possible to solv...