Question

simplify. [2/3]^2 ×[-2/7]^3 × [7/2]^4

Answer 1

(2^2/3^2)*(-2^3/7^3)*(7^4/2^4)=
(4/9)*(-8/343)*(2401/16)=
63.194

Answer 2

= $\frac{2^2}{3^2}$ × $\frac{-2^3}{7^3}$× $\frac{7^4}{2^4}$

= $\frac{4}{9} × \frac{-8}{343} × \frac{2401}{16}$

= $\frac{-14}{9}$