Question

4 va rog dau coroana nu răspunde-ți prostii va rog ​

Answer 1

Răspuns:

a) 140

b) 132

c) 292

d) 1275

e) 2x

f) 0

Explicație pas cu pas:

a) |-98|+|70-40|+|-12|

=98+30+12

=128+12

=140

b) |89-78|+100+|-21|

=11+100+21

=111+21

=132

c) |55:5-5|+|-190|+|-90|+6

=|11-5|+190+90+6

=6+280+6

=286+6

=292

d) |-1|+|-2|+|-3|+…+|-50|

=1+2+3+...+50

=(1+50)•50:2

=51•25

=1275

e) |x|+|-x|

=x+x

=2x

f) |x|-|-x|

=x-x

=0