exam Maths Puzzle Numerical Ability


Can you please help me factor this expression?
a5</sup> + b5</sup>.
Thank you so much for your help.</PRE>

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exam Other Question

2x-5y,x=-9 and y=9 What values for X must be excluded in this fraction?

x-3
---------
(4x-5)(x+1)

How do I figure out the values to be excluded from this fraction? Thank you