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Follow standard procedure that can be taught on a whiteboard. In general:ax^2 + bx + c = (x+b/2)^2 - (b/2)^2 + csox^2 - 6x + 7 = (x-3)^2 - (9) + 7= (x-3)^2 - 2

An angle between 90 degrees and 180 degrees. NB- a reflex angle is an angle between 180 degrees and 360 degrees.

Solving simultaneous allows us to determine the value of two variables from two equations. 2x+y = 133x+2y = 21
To find the value of the variables, our first step is to choose a variable and have equa...

16^1/5 x 2^x =8^2/3 work out x

The first reason the Treaty of Versailles was perceived as unfair was the inclusion of the War Guilt Clause which was juxtaposed to German perceptions of World War I. The War Guilt clause gave culpabilit...