exam Maths Puzzle Numerical Ability

Finding (f*g)(x) and (g*f)(x) and the domain of the following.

f(X)= squared root of x+1
g(x)= squared root of x-1

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exam Other Question

Can someone help me step by step in reducing and simplifying this expression??
x^2+2x/(4x-3)/6x^3/(8x^2-2x-3)
Thanks
Translate to an equation and solve.

The sum of two consecutive odd integers is 116. find the integers