exam Maths Puzzle Numerical Ability

Consider g(x)=x^3+4x; what is the maximum number of zeroes it can have?
a. 2
b. 1
c. 3
d. 4

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exam Other Question

Could someone please help me?

Given f(x)=x^2 and g(x)=3x-1, find (f*g)(2) and (g*f)(x)

Any help will be greatly appreciated. Translate the following statement into an algebraic equaion. Let x represent the number.
6 times a number is 14 more than that number.