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How do I expand and simplify linear equations?

Let's take the example: 3( x + 2) + 2( x - 1) Start with the first part: 3( x + 2) We have to multiply what is outside of the bracket with the individual things inside the bracket sparately and add them toge...
AO
Answered by Alexis O. • Maths tutor
15320 Views

What is the difference between a gene, a chromosome and DNA?

Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other. DNA stands for Deoxyribose Nucleic Acid. DNA molecules contain the genetic code which is m...
EH
Answered by Emily H. • Biology tutor
29169 Views

What is a liquidity trap?

Under normal circumstances, when there is an increase in the money supply the interest rate should decrase because money is more abundant hence the cost of borrowing is low. In a liquidity trap the interest ...
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Answered by Maria L. • Economics tutor
4727 Views

Could you explain the Marshall Plan and Truman Doctrine? What is the difference?

The Truman Doctrine and Marshall Plan were two seperate parts of United States foreign policy during the Cold War. I like to think that the Marshall Plan was part of the Truman Doctrine. It's easiest to unde...
FK
Answered by Fin K. • History tutor
17703 Views

How can I ensure that I get into the top bands for my OCR GCSE English Literature essays?

Anyone can achieve top marks in their English Literature essays if they follow these simple steps. Essentially, all you have to do is reach the Assessment Objectives the exam board requires. For instance, AO...
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