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firstly, x² + 4 = 0 x² = -4 x = 2i x = -2iSecondly, x² + 8x + 25 = 0 using the quadratic formulae: x = (-b +- sqrt(b² - 4ac))/2a x = (-8+-sqrt(64-100))/2 x = -8...

The passé compose is put together using this simple formula:
Subject + Etre or Avoir conjugated in the present tense + past participle
The subject is either je, tu, il/elle/on...

Gabbert et al took 120 participants and put them into pairs. He then showed each participant a video of a girl putting a book back into a University office. However, each person from the pairs could see ...

At the first proton pump and associated electron carrier of the inner mitochondrial membrane reduced NAD releases two H⁺ ions and two electrons. An electron travels down a series of electron ca...

Introductions are notably tricky part of the essay to get right. Examiners tend to place a significant amount of emphasis on them. They are sometimes able to predict how highly the essay will score by re...