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factorise and simplify (x^2+4x+4)/(3x^2+15x+18)

Factorise: Top (x^2+4x+4) = (x+2)^2Bottom (3x^2+15x+18) = 3(x^2+5x+6) = 3(x+3)(x+2)Simplify: ((x+2)^2)/(3(x+3)(x+2)) = (x+2)/(3(x+3))
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Answered by Nikita S. • Maths tutor
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How do I expand (2x+5)(9x-2)?

First, remember that a set of closed brackets directly beside a single term/another set indicates that they are being multiplied. The key to expansions like this is to do it a particular order every time to ...
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Answered by Meron E. • Maths tutor
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How does vaccination prevent illness?

When a person is vaccinated, a small amount of dead or inactive pathogen (that they are being vaccinated against) is introduced into their body. This stimulates the white blood cells to produce antibodies.Th...
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Answered by Freya T. • Biology tutor
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What is 15% of 640?

There are different ways to approach this question: directly or breaking it down.By using the method of breaking it down, we can split this percentage into easier percentages. 15% is the sum of 10% and 5%, w...
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Answered by Romina R. • Maths tutor
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How do I ensure my conclusion wraps up my essay well?

Conclusions can be critical to your overall mark and should never be rushed! The main aim of a conclusion is to bring together everything you have written to come to a judgement. Examiners love originality a...
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Answered by Georgina T. • English tutor
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