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Disguised quadratic. Let y=x^2So quadratic become y^2-4y-5=0so (y-5)(y+1)=0so y=5 and y=-1so x^2 = 5 or -1cannot be -1 as not real henso x^2=5x=+-sqrt(5)

Zunächst einmal ist es wichtig, die verschieden Arten des Mobbings an Schulen aufzudecken. Hierzu gehören zum Beispiel Cyber-Mobbing und/oder das Hänseln an der Schule. Für beide Arten bieten sich verschi...

There is a very clear class system presented in the novel, despite one of the founding principles of America (the flawed American Dream - equal freedom of opportunity - is one of the central ideas of the ...

Schizophrenia is known to run in families, with occurrence in less than 1% of the general population, but 10% for those with first degree relatives. This risk is even higher with identical twins, with tho...

Write 3^(t) as an expression involving x : We can rewrite x = 3^(-t) + 1 as x - 1 = 3^(-t) ; equivalently, 3^(t) = (x-1)^(-1). Substitute this expression into y, to write y in terms of x: y = 2 x 3^(t) = ...