exam Maths Puzzle Numerical Ability

Can you please help me with this equation?

(x+5)^ 3/2 = 8

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exam Other Question

I need some help with log please

Solve ln(3+3x)-ln(x-4)=ln5

thanks for your time Can someone please help me with this problem:

Which of the following is a reflection of f(x)= -x + 1 about the x-axis?

1. r(x) = x + 1
2. r(x) = -(x - 1)
3. r(x) = x - 1
4. None of the above