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How do I simplify fully (p^3 x p^4)/p^2?

At first this looks quite daunting as it combines a number of different indices (powers) and a fraction. The rules for indices are just something that you have to learn - so don't worry if you don't know the...
ER
Answered by Emily R. • Maths tutor
15148 Views

Solve simultaneously: x + y + 3 = 0 and y = 2x^2 +3x - 1

First Step: I believe here it is important to firstly look at each equation on its own and just try to think how the examiner would want you to answer this type of question. Second Step: Recognise that both ...
JS
Answered by Jamie S. • Maths tutor
5274 Views

Solve the equation; 4 cos^2 (x) + 7 sin (x) – 7 = 0, giving all answers between 0° and 360°.

4 cos 2 (x) + 7sin (x) – 7 = 0 (1) Using the identity sin 2 (x) + cos 2 (x) = 1, rearrange to give; cos 2 (x) = 1 - sin 2 (x) (2) Sub (2) into (1) ... Giving; 4 ( 1 - sin 2 (x) ) + 7sin (x) - 7 = 0 Expand br...
CS
Answered by Connor S. • Maths tutor
19563 Views

Solve X^2 +13X+48=12

It is first important to get the equation to equal 0, so to do this you minus 12 from each side of the equals symbol, giving youX^2 +13X+36=0Now it is time to think about factorising!The best trick for this ...
KM
Answered by Kemba M. • Maths tutor
6725 Views

How should I approach my GCSE maths paper?

The way that papers are set is that you usually can allow just over a minute for each mark. This means if a question is 6 marks, it should take about 6 minutes to answer. It is generally a good idea to be qu...
KM
Answered by Kemba M. • Maths tutor
7185 Views