exam Maths Puzzle Numerical Ability

Help please
I am trying to figure out how to factor this to get the difference of two cubes:
27-u^3. Thank you!!!

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exam Other Question

A common mistake when solving equations is the following:

The equation: 2(x-2)= x+3
First step in solving 2x-2=x+3

Write a clear explanation of what error ha
I hate word problems, and have a hard enough time figuring them out let alone making one up. How should I give an example of using polynomials in “real life” applications?