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So the passé composé (simple past) and imparfait (imperfect) might seem very similar since they both describe actions in the past. However there are some important differences. The key thing to remember is t...

A student will often see the equation of a circle in the form (x-a) 2 +(y-b) 2 =r 2 . In this instance, a and b simply represent numbers. They are not variables. In fact, a represents the x co-ordinate of th...

Blood glucose levels start to fall in the blood. Blood flowing through the pancreas is low in glucose, and this is sensed by cells in the pancreatic tissue. In response, it produces glucagon, ( which is a ho...

To solve an algebraic equation you need to rearrange it into the format x=? To do this there are a few rules and few steps R ules: whatever you add or subtract to one side you must also do to the other side ...

Firstly, begin by multiplying both sides of the equation by (x-2) and (x+3), this gives 6(x+3)-2(x-2)=(x+3)(x-2). Expand out the brackets on each side of the equation to give 6x+18-2x+4=x 2 -2x+3x-6. Next, e...