exam Maths Puzzle Numerical Ability

This is a very long queation, and i have no idea of how to figure it out. I am totally confused on this. It is a long queation, and it is two parts.

part 1: find the loganthn

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exam Other Question

Factor
64w^3 + 8x^3



Solve
2x^2 - 11x + 13 = 1
"Find three consecutive even numbers whose sum is -90"

thanks