Question

O valor de (-5)^2-3^2+(2/3)^0/3^-2+1/5+1/2 é igual a:

Answer 1

Boa tarde!

(-5)² - 3²+ (2/3)^0/3 - 2 + 1/5 +1/2=

25 - 9 +1 - 2 + 1/5 + 1/2=  MMC(2,5)= 10

25 x10 - 9 x10 - 2x10 + 1 x 2 + 1 x  5=

250 - 90 - 20 + 1 +5=
250 -110 +6=
140 + 6=
146