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calculati : -4+(-3):[2-(-6):(-2)]+1 ;b)3-2x{5-3x[4-(-2):(-1)}]c)-2x[3-(-6laputerea2):(-9)]-2x[5-(-7)];d)-5laputerea2+3:[7-(-4):(-1)]

Răspuns :

Drowzeyask

a) -4+(-3):[2-(-6):(-2)]+1

=-7:(2-3)+1=

=-7:(-1)+1 =

=7+1 = 8

b) 3-2*{5-3*[4-(-2):(-1)]}=

=3-2*[5-3*(4-2)]=

=3-2*(5-3*2)=

=3-2*(-1) =

=3*1= 3

c) -2*[3-(-[tex]6^{2}[/tex]):(-9)]-2*[5-(-7)]=

=-2*(3-36:(-9)]-2*12=

=-2*(3-4)-2*12=

=2-24 = -22

d) [tex]-5^{2}[/tex]+3:[7-(-4):(-1)]=

=25+3:3=

=25+1= 26

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