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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.

The curve is a quadratic equation because it has a x^2 - as it is positive it will be a u shaped parabola. The equation can be factorised by thinking of two numbers which add to make 4 (the b value) and m...

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