" Q1."(441)/(5^(7)7^(2)2^(2))" is a "

1^(2),5^(2),7^(2),73

Has the rational number (441)/(2^(2)5^(7)7^(2)) a terminating or a non-terminatin decimal representation?

Has the rational number (441)/(2^(2)xx5^(7)xx7^(2))a terminating or a non-terminating decimal representation?

Has the rational number (441)/(2^2xx5^7xx7^2) a terminating or a non-terminating decimal representation?

The value of ((6^(-1)7^(2))/(6^(2)7^(-4)))^((7)/(2))xx((6^(-2)7^(3))/(6^(3)7^(-5)))^(-(5)/(2)) is

log_((1)/(5))(2x^(2)+7x+7)=0

Simplify ((5^(-1)*7^(2))/(5^(2)*7^(-4)))^((7)/(2))*((5^(-2)*7^(3))/(5^(3)*7^(-5)))^(-(5)/(2))