this what i meant..Short answer .Raise the quanity in parenthesisto the indicated exponents and simplify the resulting expression.Express with positive exponents.(50x^2y^-4/200x^-2y^4)^3

Answer 1

(50x^2y^-4/200x^-2y^4)^3

First you can simplify inside the parens:

x^2/x^-2 = x^4
y^-4/y^4 = y^-8 = 1/y^8
50/200 = 1/4

so, now you are left with

(x^4/4y^8)^3 = x^12/64y^24

Answer 2

(3x^ay^bz^c) (-y^fz^g)