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1 : 2x + y = 1 y = 1 - 2x2 : x^2 + (1-2x)^2 = 1 x^2 + (1-2x)(1-2x) = 1 x^2 + 1 - 2x - 2x + 4x^2 = 1 5x^2 - 4x + 1 = 1 5x^2 - 4x = 0 x(5x - 4) = 0 x = 0, x = 4/5 y = 1, y = -3/5

Recap, what is 'squaring a number'? Multiplying a number by itself, for example, 3 x 3 = 9. The question hasn't given us a specific number, hence that value can be any number, it is said to be a 'variable...

Question = Simplify a⁴ x a⁵-------------------------------------------So here we have two 'groups' of a being multiplied together. We can rewrite a⁴ and a⁵ as t...

This is an example of a question that may appear in a calculator paper. In this question the area of the square and circle must be found individually, and the area of the circle subtracted from the area o...