exam Maths Puzzle Numerical Ability

Use the quotient rule to simplify the expression:
(-11)21
-------
(-11)19
Note- The problem reades -11 to the 21 power divide by -11 to the 19 power.
Thanks,
Pat

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exam Other Question

I am suppost to simplify the following and execute all multiplication and division: (x+3)^3

This is what I have: x^3+9x^2+27x+27 not sure if it is right
Thanks, Lackinmath
five times a number(n) plus six equals negative four