exam Maths Puzzle Numerical Ability

x-5(x+2)=x+3(3-2x)

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exam Other Question

evaluate each expression.

This is the problem I need help with:
((( (a/b)^2 + b^3 for a= 24 and b= -6)))
Reduce to lowest terms

-3c third power d/-9c 2nd pwoer d third power.