a) 5 x (-1/5)² + 6 x (1/5)do potegi 0 - 0,2=
b) [(4-5)² -(6-7)³ ]do potegi 6
c) -(1/4)² x 2do potegi 4 - (-2)do potegi 0 - 4³ x (-1/4)²=
d) (-1 1/2)² : 0,5² - [-4/9²+7/(-3)²]do potegi piatej
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a)5*2,25+6*1-0,2= 11,25+5,8=17,05
b)=1
c)-1/16*16+1-64*1/16= -1+1-4=-4
d)9/4:0,25-[16/81+7/9] =9-1=8