Question

Quanto é:
9/10-(5/10)^2x2/10

Answer 1

9/10-(5/10)^2 . 2/10 =

9/10 - 25/100 . 2/10 =

9/10 - 1/4 . 1/5 =

9/10 - 1/20=

(- 10 + 180)/200 =

170/200=

17/20