book Maths Puzzle Numerical Ability

I would like to find out how to solve this problem....

[(5x-2y)-8]2

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book Other Question

how do i graph square roots and cubed roots? the question asks for the family name, the graph, the transformation, and the domain and range 2) For the function y = x2 - 4x - 5, perform the following tasks:
a) Put the function in the form y = a(x - h)2 + k.

b) What is the line of symmetry?



c) Graph the f