exam Maths Puzzle Numerical Ability

This question is from a quiz. You must show all relevant steps, list all numbers for which the rational expression is undefined.

x^2+6x-27
___________
x^2+x-6
Thank you

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exam Other Question

Please help me with square root. I must see how it is done. I have more to do.

sqrt7(2sqrt3+3sqrt7)

Many thanks Please help with graphing these equations:

The fraction is throwing me off on this one.

y= -1/3 x+4

3y-9x = 30

Thanks in advance!! You all are awsome!