exam Maths Puzzle Numerical Ability

What is the monomial that can be factored out of 4x^2 + 12x + 16? is has four choices to choose from...
(a) 2
(b) 2x
(C) 4
(d) 4x

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exam Other Question

f(x)=log2(x+5)and g(x)=log2(x-1)
solve g(x)=37 what point is on the graph of g?

the 2's are the bases and the x+5 and x-1 are the powers.

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