a)
-(2×7)²:{5²-[27-(16-2²+2×13):(-21)puterea0):(-7)}
-(2×7)²:{25-[27-(-16-4+26):]1]:(-7)}
-(2×7)²:[25-(27-6):(-7)]
-(2×7)²:[25-21:(-7)]
-2×7)²:(25+3)
-(2×7)²:28
-(2×7)²supra28
-4×49supra28
-49supra7
-7
b)
-(-2)×(-5)×((-3)³+(-2)⁴+(-4608):96)+6×10²
2×(-5)×(-27+16-48)+6×100
2×(-5)×(-59)+600
590+600
1190
c)
