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To form 'le passé composé' (the perfect tense), you need to use an auxiliary verb which is either avoir or être plus the past participle. Avoir is usually used but when the verb is a verb of motion or a refl...

A quadratic equation is one that takes the form.. ax 2 + bx +c = 0 Factorising an equation like this involves putting the equation into two brackets. The method varies slightly dependent on whether a = 1 or ...

A mutation will randomly occur in individuals within a species, providing a larger variation in genes. This mutated gene may produce characteristics which are beneficial for the individual in their environme...

9/3x 2 - 3y 2 + x/xy - x 2 = 9/3(x 2 -y 2 ) + x/x(y-x) = 3/(x-y)(x+y) + 1/y-x = 3/(x-y)(x+y) - 1/x-y = 3-1(x+y)/(x-y)(x+y) = 3-x-y/(x-y)(x+y)

I find it helpful to start with the 'big picture', and then slowly zoom in until your studying the language at a micro level. Here are some things you could look at as you zoom in: What is the context of thi...