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f(x)=2x^2 -8 What is the value of x if f(x)=0, x>0

This would be a typical B grade GCSE question. Firstly, let's set f(x) to 0 , where now we have 0=2x 2 -8 . We now need to rearrange to find x. First, move the -8 to the other side of the "=" sign,...
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Answered by Tutor122314 D. • Maths tutor
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How do you scan a line of dactylic hexameter?

Take a line of dactylic hexameter in Latin, e.g. Thybris ea fluvium, quam longa est, nocte tumentem (Virg. Aen. 8.86)Begin by marking any elision in the line (where a word ending in a vowel or an ‘m’ is foll...
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Answered by Jonathan H. • Latin tutor
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How do I know when to use which past tense in French when I'm translating/writing?

The easiest way to correctly use different tenses, and particularly past tenses, when writing in French, or translating into French, is to remember the different values linked to each tense, in the context o...
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Answered by Florence D. • French tutor
2720 Views

Factorise 12x^2 +17x +6

If you imaging the equation as ax^2 +bx +cYou multiply the numbers of a and c together. This number then becomes the product of two numbers that either add or subtract to make the number for b.So 12 x 6 is 7...
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Answered by Amy B. • Maths tutor
11038 Views

Factorising Quadratics: x ^2 ​​ − x = 12

Factorising a quadratic basing means 'putting it into 2 brackets'. The standard format for a quadratic equation is:ax^2 + bx + c = 0. You'll usually find that this becomes a lot easier when a=1. As well as f...
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Answered by Avishka D. • Maths tutor
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