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Expand and simplify (x+3)(x+5)

The easiest method for expanding these brackets is to use the FOIL method of expansion. This ensures you multiply every aspect of the brackets together. First - take the first terms of the brackets (so, x an...
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Answered by Adam D. • Maths tutor
61246 Views

How to solve simultaneous equations?

Let's say we have two equtions: 3x + y = 8 5x + 2y = 14 In order to solve them, we need to bring one of the coefficients to the same number. Let's say we do that with y. So: 6x + 2y = 16 5x + 2y = 14 Now, we...
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Answered by Kamila W. • Maths tutor
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Simultaneous Equations

So I’ve set out a sheet with a few examples of how to do simultaneous equations. The first method shows a simple graphic representation where you can get an estimate of the solutions, but I then show how thi...
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Answered by Louis R. • Maths tutor
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How do muscles contract and how is this controlled?

Skeletal muscle is composed of myofibrils. The myofibrils contain repeating units called sarcomeres. This also called the operational units. The sarcomeres contain actin filaments and myosin filaments. The a...
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Answered by Erika K. • Biology tutor
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Translate into Spanish: A spokesman said the project would include seventy wind turbines

Un portavoz dijo que el proyecto incluiría setenta molinos de viento.
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Answered by Silvia M. • Spanish tutor
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