Question

faça os cálculos (tem haver com racionalização, eu acho)

Answer 1

a)$-7^{2} +(-7^{2} )$
 -49+49=0

b)$-2^{3}$-30+1
-8-30+1
-38+1
-37

c) (-2/3)$^{3}$ +1
-8/27+27/27
19/27

d)-5$^{2}$+ (-3)$^{2}$-10
-25+9-10
-35+9
-26

e)3$^{2}$+3$^{-2}$
9+(1/3)$^{2}$

f)5$^{0}$-(-1)-(-1/2)$^{2}$
1+1+1/4
2+1/4

g) ?????