Multiply the numbers and letters...
Let's separate them...
2 -3 = -6
x x^2 (add your exponents) = x^(1+2) = x^3
y^2 y (add exp) = y^(2+1) = y^3
Put it all together!
-6x^3y^3
Do the same for no. 2.
(1/3)-9 = -9/3 = -3
x^2 x = x^(2+1) = x^3
y y^3 = y^(1+3) = y^4
Put it together...
-3x^3y^4
