exam Maths Puzzle Numerical Ability

I need help to perform the indicated operation

f(x)=x+2 g(x)=x2 -1

I need to find (g of)(x)

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exam Other Question

Factor each polynomial completely by factoring out any common factors and then factor by grouping. Do not combine like terms.
3a^3 + 3ab^2 + 2a^2b + 2b^3 Solve the following application and show your work.
Solve and graph the solution set of the following inequality.
7(x - 3) > 5x - 14