(-9r^6s^4)^2
81r^12s^8
(-2m^4)^2/(8m^2)
m^6/2
-8(x^-3y^4)^-5
(-8x^15)/y^20
4x^7y^6+9x^3y*2x^4y^5
22x^7y^6
1/6(8xy+4xy)^2(3x^2)
72x^4y^2
(-2x^2y)^2*(-3xy^3)
-12x^5y^5
(15a^16b^11)/(3a^4b^2)^3
(5a^4b^5)/9
(-11x^3y)^-2
1/(121x^6y^2
2m^10n^2•(-7m^9n^5)^2-(-m^7n^3)^4
97m^28n^12
(10a^4b^6)(3a^5b^2)-7a^9b^8
23a^9b^8
(3xy)^2*(-4x^3y^2)^3
-576x^11y^8
((5x^6y^2)/(10x^4y))^2
(x^4y^2)/4
(9xy^5z^3)/(36xy^4z^5)
-y/(4z^2)
(-6a^5b)^2/(12a^7b)-8a^3b
-5a^3b
(2y^3*-2x^4y^3)/(-x^3y^-3)^3
-(4y^15)/x^5
-3(2x^4y^2)^3(4x^5y)^2
-96x^22y^8
(2a^3b^4)^3/(2ab^2)^5
(a^4b^2)/4
(-15r^6s^7t^4)/(3r^2s^9t^7)
(-5r^4)/(s^2t^3)
(uv^2*u^2v^-3)/(vu^-1)^3
u^6/v^4
(-m^4n^-1)/(-2n^-2*(-m^2n^3)^3)
-1/(2n^8m^2)
(-18m^2n^2p^2)^2(-1/6mn^2)^4
1/4m^8n^12p^4
(3x^5y^3)^5/(6x^10y^7)^2
(27x^5y)/4
(4x^2y^5)^2/((2xy^2)^3(3x^3)^2
(2y^4)/(9x^5)
((x^2y^4*-2x^3y^-1)/(2x^3y^-3))^2
y^12x^4
((-x^-3)^3/(-x^3y^4*-2x^-4y^2))^4
1/(16x^32y^24)