Hi
1) -m^4n^-5= -m^4n^5
2) -4x^-1y^3= -4y^3/x
3) 2yx^-5= 2y/x^5
4) 3nm^-4=3n/m^4
5) 3x^3y^-5=3x^3/y^5
6) -5m^0n^-2= -5/n^2
7) 4x^-5y^2= 4y^2/x^5
8) 2m^-3n^4= 2m^3n^4
9) 4x^-3y^5= 4y^5/x^3
10) 2m^-1= 2/m
11) -5u^-3y^0= -5/u^3
12) -x^-2y^4= -y^4/x^2
Finally :)
I hope that's help and good luck !
(5x2 – 2)(25x4 – 10x2 + 4)
(5x2 – 2)(25x4 + 10x2 + 4)
(5x2 – 2)(25x4 + 10x2 – 4)