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To solve the equation you need to factorise the quadratic. This means you need to find 2 numbers that when multiplied make 5 and when added together make -6. These would be -1 and -5. You can now separate -6...

Firstly if you multiply the number infront of the x 2 by the number at the end to give -12. And then take the number infront of x, which is -1. Now we need to find two numbers that add to make -1 and multipl...

The best way to revise Maths is by completing questions by topic then once confident, moving on to past papers.

A hypothesis test can be thought of as being somewhat similar to a court case. In a court case, we want to find out whether someone is either guilty, or not guilty, so we assume that they are not guilty, and...

To solve this question you need to find a value of x and y which satisfies both of the equations. Simultaneous equations can be solved by three methods: substitution, elimination, and graphically. We will us...