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How can I achieve a grade A?

It is absolutely vital that examples are incorporated in the argument of your essay. For every point that is made, an example should be given as it demonstrates your understanding of a political concept. The...
RR
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p(x)=2x^3 + 7x^2 + 2x - 3. (a) Use the factor theorem to prove that x + 3 is a factor of p(x). (b) Simplify the expression (2x^3 + 7x^2 + 2x - 3)/(4x^2-1), x!= +- 0.5

(a) The factor theorem states that: the polynomial f(x) has a factor (x - a) if and only if f(a) = 0.Use that information, we know that (x + 3) is a factor of p(x) if p(-3) = 0. So let's test it:p(-3) = 2(-3...
JM
Answered by James M. • Maths tutor
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Outline ONE strength and ONE weakness of the research method you described previously. (4 marks - Edexcel)

One strength of a laboratory experiment is they allow a high level of control over the procedure so all participants will witness the same standardised procedure. This means the procedure can be repeated on ...
CS
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Describe ONE research method usas it is used in criminological psychology. In your answer you must refer to how the research method is used in criminological psychology. (4 marks - Edexcel)

In a laboratory experiment a participant will witness a controlled incident which is linked to a crime. This incident is artificially set up by the researcher in a laboratory setting. The witness may be show...
CS
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Emily is 5 years old. Her mother has noticed she is acting in a more feminine way. Use Freuds's theory to explain how Emily developed her gender behaviour. (5 marks - Edexcel)

Freud's theory suggests the Electra Complex, which occurs during the Phallic Stage, is when girls discover they have alack of penis. During this time, the Emily's natural love for her father will unconscious...
CS
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