`(2/5)^2 xx (2/5)^3 xx (2/5)^(-6) = (5/2)`

(-5)^(2)xx(-5)^(-3)=(-5)^(-6)

Find x: (2/5)^(2x+6)xx(2/5)^3=(2/5)^(x+2)

The value of (3)/(4) xx 2 (2)/(3) -: (5)/(9) " of " 1(1)/(5) + (2)/(23) xx 3 (5)/(6) -: (2)/(7) " of " 2(1)/(3) is :

(-2)^(-5)xx(-2)^6

105 xx 2 ÷ (3 xx 5) - 6 = ?

2/5 xx (-3)/7 + 1/(14) xx 2/5

((5^(-1)xx7^(2))/(5^(2)xx7^(-4)))^((7)/(2))xx((5^(-2)xx7^(3))/(5^(3)xx7^(-5)))^(-(5)/(2))

Simplify : ((2)/(3))^(2)xx((2)/(5))^(-3)xx((3)/(5))^(2)