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First substitute (3x) into the equation for f(x), giving f(3x) = 8 - 9x². This is then equal to -28 and so it is remains to solve the equation 8 - 9x² = -28. This can be written as 9...

First multiply the brackets to get: (2x² - 6x + x - 3), Simplify to get: (2x² - 5x - 3), This is then all multiplied by x to get: 2x³- 5x² - 3x.

The photo-electric effect is the way in which electrons are released from the surface of a metal when there is an incident light ray. The particle model of light, as part of wave-particle duality, suggest...

Whilst for some medical schools work experience is not mandatory, for the majority, it is highly recommended. Gaining work experience in a healthcare profession is not only valuable in ensuring that medic...

Following an introduction that sets out your argument and the context that will support it, each paragraph of your essay should include a topic sentence (which outlines the argument you will make in the p...