`(-4/7)^2xx(-7/2)^4`

Simplify and express each of the following as power of a rational number: (2/3)^3xx(-6/7)^2xx(-7/4)xx3/2 (iii) -(2/5)^2xx(5/7)^2xx(49)/5+(-4/5)^3xx5/4xx3/4

Simplified value of ((4/7)^5xx(-2/3)^4)/((4/9)xx(4/7)^3)

Simplify the following : (-2)^7xx(-2)^3xx(-2)^4

(-7)^(4)xx(-7)^(2)-(-7)^(-2)

(-4/7 a^2 b)xx(-2/3 b^2c)xx(-7/6 c^2a)

The value of ((2/5)^(3)xx(1/7)^(3))/((2/5)^(2)xx(1/7)^(4)) is

(5/7)^4 xx (7/5)^2 is equal to

Show that -4/3xx(2/5+(-7/10))=(-4/3xx2/5)+(-4/3xx(-7/10))

Evaluate ((-2)/(7)) ^(-4)xx ((-5)/(7)) ^(2).