exam Maths Puzzle Numerical Ability

factor completely

x^2-x-6

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exam Other Question

value of the function g(x) = -5x + 2 when g(5x + 1)

Thanks Kevin
someone show me how to solve this?? If an observer is 200ft from a building and the angle of elevation to the top of a building is 60 degrees, what is the height of the building?can