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You are given a polynomial f, where f(x)=x^4 - 14x^3 + 74 x^2 -184x + 208, you are told that f(5+i)=0. Express f as the product of two quadratic polynomials and state all roots of f.

Since x=5+i is a solution to f(x)=0 we then know that x=5-i must also be a solution to f(x)=0, by the complex conjugate root theorem.Now we can break f down into the product of a polynomial and these two kno...
PL
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Help with the following assessment preparation: You have seen a poster for a summer job you are interested in. Write a letter to the employer to explain why you are suited for the job.

Hi! In question your examiners will be looking for a few main components, make sure you demonstrate them: 1) Can you use a variety of tenses 2) Do you have the appropriate vocabulary (in this case, use vocab...
AP
Answered by Audrey P. • French tutor
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Given the curve y=x^2 -6x +8, find the turning point.

For a turning point, the differential of the curve is equal to 0. Therefore dy/dx = (1 2)x^(2-1) - (6 1)x^(1-1) + 0 = 0. This gives x = 3. Substitute this back into the original equation to get y=-1. Therefo...
EB
Answered by Ellis B. • Maths tutor
7953 Views

America has won the 'War on Terror'. Discuss

If we determine the level of success for a policy in the Middle East to be based on US foreign policy assumptions, then the result; the US has lost the ‘War on Terror’. If we consider what makes a successful...
GG
Answered by Georgina G. • Politics tutor
1740 Views

Assess & Compare the Advantages and Disadvantages of TQM with Quality Control.

Total Quality Management is an attitude towards quality where the key aims are zero defects and total customer satisfaction. Advantages Costs are reduced due to less wastage Disadvantages Time-costlyHigh sta...
EO
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