81а^4b^4 -a^5b^5c^5
16a^2b^2 -8x^3y^3z^3
(-3ab)^4 =81а^4b^4 (-abc)^5= -5a^5b^5c^5 (-4ab)^2= 16a^2b^2 (-2xyz)^3= -8x^3y^3z^3
81а^4b^4 -a^5b^5c^5
16a^2b^2 -8x^3y^3z^3
(-3ab)^4 =81а^4b^4 (-abc)^5= -5a^5b^5c^5 (-4ab)^2= 16a^2b^2 (-2xyz)^3= -8x^3y^3z^3