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Calculati:a)(-0,16)+0,1(6)-0,6=  b) (-43+3²·2:(-5)²+(-17+15)·(-1)⁴ = c) (-2)⁻³·0,8+(-1)⁵+(-19-2005)⁰= va rog mult vreau rezultate :(  ma ajutati va rog 

Răspuns :

a)(-0,16)+0,1(6)-0,6= -16/100+(16-1)/90-6/10=(-16-60)/100+15/90=
-76/100+5/30=-38/50+1/6=-19/25+1/6=
=(-19x6+25)/150=-89/150=-0,59(3)

b) (-43+3²·2:(-5)²+(-17+15)·(-1)⁴ =(-43+9x2):25-2x1=(43-18):25-2=25:25-2=1-2=-1

c) (-2)⁻³·0,8+(-1)⁵+(-19-2005)⁰= -1/2³x8/10-1+1=-1/8x8/10=-1/10=-0,1

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