exam Maths Puzzle Numerical Ability

Multiply

(x - 10)(x + 9)

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exam Other Question

Please, can someone help me with the following problem? I am totally confused with it.

Consider the function f(x)=x^2+6-2
a) Find h, the x-coordinate of the vertex of this par The sum of three consecutive even numbers is 60. What are the the 3 numbers? Can someone help me figure this one out?