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How do I expand out a pair of brackets?

Expanding something out like (x+2)(x+3) crops up everywhere in maths. Therefore it's a very important skill to develop.There are many different ways of looking at it - smily faces, rainbows, claws - to na...

CW
Answered by Cordelia W. Maths tutor
5923 Views

How do I simplify surds?

Easy! We first consider which number is in the square root. Then we look at it's factors:- if any of factors are square we can immediately take their root out of the overall square root. Once all the squa...

CW
Answered by Cordelia W. Maths tutor
6896 Views

How do the hydrophobic and hydrophilic properties of phospholipids help maintain the structure of cell membranes?

The cell membrane is comprised of molecules with a phosphate head and hydrocarbon tail. The phosphate heads are polar, therfore they are hydrophilic and form favourable interactions with water, so line...

AB
Answered by Alexis B. Biology tutor
13856 Views

How do I differentiate?

Differentiation is a relatively easy process once you learn the basic method. The basic rule is, you multiply the coefficient of x by the exponent, which becomes the new coefficient, and then reduce th...

AB
Answered by Alexis B. Maths tutor
6459 Views

What is the best way to study for a Maths exam?

Lots and lots of past paper questions! Any other questions as well really. When it comes to maths, practice makes perfect. Every time that you answer questions from a specific topic, you develop an extra ...

SS
Answered by Shyam S. Maths tutor
4129 Views

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