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Find the binomial expansion of (2+x)^3

We know thst the binomial expansion formula is (1+x) n = 1+nx +(n)(n-1)(x 2 )/2! ...etc Thus we want to rearrange the expression we are given into the form (1+x) n so that we can apply the formula to it. Tak...
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Answered by Laura V. • Maths tutor
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What are transnational corporations and why do they grow?

Also known as MNCs (Multinational Companies) these are large businesses that operate in a number of countries. They often separate their production between various locations, or have their different division...
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Answered by Dee A. • Geography tutor
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Given that y = 3x(^2) + 6x(^1/3) + (2x(^3) - 7)/(3(sqrt(x))) when x > 0 find dy/dx

Firstly, the (2x(^3) - 7)/(3(sqrt(x))) can be split into (2x(^3))/(3(sqrt(x)) and -7/(3(sqrt(x)). These can then be simplified to (2/3)x(^5/2) and -(7/3)x(^-1/2) respectively. This then gives the equation y ...
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Answered by Samuel H. • Maths tutor
17629 Views

What’s the difference between a prokaryotic and a eukaryotic cell?

This is a topic which is common across all A-Level specifications, the questions surrounding this topic may vary from labelling diagrams, matching features in a table, or longer written styles of question (l...
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Answered by Zachary M. • Biology tutor
54653 Views

How do I define the differences between a perfect, plagal, imperfect and interrupted cadence?

A cadence is a chordal progression that ends a phrase or piece of music. Perfect and plagal cadences provide a harmonically stable end to the music, whereas the imperfect and interrupted cadences make the mu...
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Answered by Hannah D. • Music tutor
53460 Views