Answer:
=125
Step-by-step explanation:
5−7)(512)(5−2)
=
1
78125
(512)(5−2)
=(
(244140625))(5−2)
=3125(5−2)
=3125(
25
)
125
in any exponential multiplication, the exponents add together
x^y X x^y = x^2y
so 5^-7 X 5^12 X 5^-2 is equal to 5^(-7+12-2) = 5^3
5^3 = 5 X 5 X 5 = 25 X 5 = 125
