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= 5a - 4a^2The rules of BODMAS (brackets, Orders, Division, Addition, Subtraction) applies. Times the "a" with "-4a" first, forming 4a squared (4a^2). Then group the "3a" and...

Firstly, you must read the question carefully and thoroughly. Highlight all the key terms. It doesn’t matter how brilliant your essay is- if it doesn’t directly answer the question in front of you, you wi...

e.g. given x^2 +3x -8 = 0using the quadratic formulayou find x = (-b +- sqrt(b^2 -4ac))/2ayou then find one root using the plus instead of plus minus sign, and the other root using the minus instead of pl...

There are a few steps to this question. Before we can work out our value of X we will have to figure out an equation that links X and Y.Now if X were proportional to Y, then as X got bigger so would Y.We ...

A. Osmosis - the movement of water down a water potential gradient through a partially permeable membrane.
B. Diffusion - the net movement of molecules or ions down ...