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Find the partial fraction decomposition of the expression: (4x^2 + x -64)/((x+2)(x-3)(x-4)).

The first step to solving this question is inputting our dummy variables, and laying out the question so we know what we're doing. So we end up with:(4x 2 + x - 64)/((x+2)(x-3)(x-4)) = A /(x+2) + B /(x-3) + ...
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Answered by Matt V. • Maths tutor
4055 Views

What is the perfect tense and how do you form it?

The perfect tense in Spanish translates as 'to have done something' in English. It is used to express actions that begun in the past and are carried through to the present. For example, 'Todavía no ha traído...
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Answered by Lexi R. • Spanish tutor
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In an analysis of copper sulfide, 12.7g of copper was found to be combined with 3.2 g of sulfur. Calculate the empirical formula.

So, the empirical formula means the smallest value, like the lowest common denominator in maths, but instead of fractions we are going to be using chemical formulae. I always find it easiest to set it out li...
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Answered by Serena S. • Chemistry tutor
6426 Views

How do I analyse quotes in an essay?

The first thing to do when choosing a quote to analyse in an essay in to make sure it is relevant to your argument. Think about the theme in the question you have been set - for example, a question asking yo...
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Answered by Megan W. • English tutor
3866 Views

Solve the simultaneous equations: 2x+5y=25, x=y+2

using our second equation, we can see that x=y+2. Therefore we can sub x into the first equation. This will give us 2*(y+2)+5y=25. We can go ahead and expand the brackets, which gives us 2y+4+5y=25. We can c...
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Answered by Louis W. • Maths tutor
4299 Views