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First gather all x terms on left hand side,7x²-13x-2=0.
Since 7 is a prime number we can begin factorisation,(7x+/-?)(x+/-?)=0.
We know there must be a +/-2 and +/-1 in place of the q...

To answer this question, you should make use of the general equation of a straight line: y=mx+c.For two lines to be parallel, they must have the same gradient (i.e. the same coefficient of x- which in the...

There a couple of helpful ways to remember historical dates. One way I used during my GCSE's was to make a song out of the relevant dates and events for each topic. This way enables you to replay the song...

All three are types of averages that we can calculate.1, 1, 4, 6, 8, 12, 17
We can calculate the mode by looking at which number is the most frequently occurring number, for example, with the above d...

To form this you begin with the infinitive of the verb eg. hablar (to speak), comer (to eat), vivir (to live). You then take off the -ar, -er, or -ir and add the following endings for the correct person: ...