Question

Ma ajuta cineva cu ex 8?? Urgenttt !!! Va roooooogggg!!!

Answer 1

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Answer 2

Răspuns:

a)15+2×5-5^2=

=15+10-25=

=25-25=

=0

b)10÷2×5-5^2=

=5×5-25=

=25-25=

=0

c)250÷5×2+10÷5×2-100=

=50×2+2×2-100=

=100+4-100=

=104-100=

=4

d)2^2×4^2×8^2:16^3=

=2^2×(2^2)^2×(2^3)^2÷(2^4)^3=

=2^2×2^4×2^6÷2^12=

=2^1=

=2

e)3^6×9^3×27^2÷81^4=

=3^6×(3^2)^3×(3^3)^2÷(3^4)^4=

=3^6×3^6×3^6÷3^16=

=3^2=

=9

f)1×4÷2×6÷3×5÷5÷4=

=4÷2×6÷3×5÷5÷4=

=2×6÷3×5÷5÷4=

=12÷3×5÷5÷4=

=4×5÷5÷4=

=20÷5÷4=

=4÷4=

=1

g)12^2+(2^2×3)^2-24^2÷2÷

=144+(4×3)^2-576÷2=

=144+12^2-288=

=144+144-288=

=288-288=

=0

h)10^3÷{123+34÷[(2×3^2)^2÷18-1]}=

=1000÷{123+34÷[(2×9)^2÷18-1]}=

=1000÷[123+34÷(18^2÷18-1)]=

=1000÷[123+34÷(324÷18-1)]=

=1000÷[123+34÷(18÷18-1)]=

=1000÷[123+34÷(1-1)]=

=1000÷(123+34÷0)=

=1000÷(157÷0)=

=1000÷0=

=0

Restul nu mai am timp acum.