(2у)^-5= -2y * -2y * -2y * -2y* -2y = -32y^5
2^-3=1/8
(-7)^-2=1/46
(3/7)^-2=46/9
25-(1/7)^-2=25-49=-24
(2у)^-5= -2y * -2y * -2y * -2y* -2y = -32y^5
2^-3=1/8
(-7)^-2=1/46
(3/7)^-2=46/9
25-(1/7)^-2=25-49=-24