Search over 10,000 free study notes

First multiply the brackets to get: (2x² - 6x + x - 3), Simplify to get: (2x² - 5x - 3), This is then all multiplied by x to get: 2x³- 5x² - 3x.

Firstly, it is important to understand here that "expand" means multiply the two brackets. A logical approach can be taken to this question. Deal with the first term (x^2) of the first bracket: ...

Since the equation has a cubic term, we can expect the curve to have certain properties: it should have three points where the graph touches the x-axis, two turning points, of which one should be a minimu...

Algebra can be tricky to get a hold of but once you've worked through a few questions, you'll quickly get the hang of it!The aim of this question is to find x, that means the solution will look like this:...

To do this we must multiply each of the individual terms inside the brackets by the outside terms. Be cautious of the negative term and its corresponding sign. We will go over the method in the uploaded f...