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First multiply out the bracket.x^2 = 4(x - 3)^2 then becomes x^2 = 4(x^2 - 6x + 9)Expand the right hand side further. x^2 = 4x^2 - 24x + 36Collect like terms. 3x^2 - 24x + 36 = 0The number 3 is a common f...

A triangle with two equal sides and angles is an isosceles triangle. Angle x will be shown in a diagram during the interview.

The trick here is to figure out what topic the question relates to, and recall all relevant theory and formula. Often questions look tougher than they actually are. Begin by writing out what you know at t...

Ok let’s take this example:5 tins of soup have a total weight of 1750 grams. 4 tins of soup and 3 packets of soup have a total weight of 1490 grams. Work out the total weight of 3 tins of soup and 2 packe...

L1 ->  y = 3x – 2L2 -> 3y – 9x + 5 = 0
L2 3y = 9x − 5 L1 3y = 9x -6
Gradient is the same therefore lines are parallel.