Question

3. Să se calculeze: a) (-2)-(-6):(-3) = b) (-10):5-(-1)=x = jnfee suradn d) - 16:|-2|³ = g) -8+20: (-5) = e) (-10): (-2).(-6):15= h) -14: (-7)-(-8):2= j) -6:3-(-4): (-2) +10= k) -14: (-2) +3.(-4)= 4. Efectuați: c) 18: (-2)-7: (-21)=2 f) -100: (-50)+(-7)= 1 i) -12: (5-11)-3: (-1) = BE (6) 1)-12: (-6+3)-(-2)-5= dau coroana​

Answer 1

Răspuns:

3. a)(-2)-(-6):(-3)=(-2)-2=-4

b)(-10):5-(-1)=x =>-2-(-1)=x=>-2+1=x=>x=-1

d)- 16:|-2|³=-16:2^3=-16:8=-2

g)-8+20: (-5)=-8-4=-12

e)(-10): (-2).(-6):15= -(10:2×6:15)=-(60÷2÷15)=-2

h)-14: (-7)-(-8):2=2-(-8):2=2+8:2=2+4=6

j)-6:3-(-4): (-2) +10=-2+4:(-2)+10=-2-2+10=-4+10=6

k)-14: (-2) +3.(-4)=7+3.(-4)=7-12=-5

4. c)18: (-2)-7: (-21)=2<=>-9-7:(-21)=2<=>-9+7/21=2<=>

-9×21/21 +7/21=2<=> -189+7/21=2<=>-182/21=2<=>-26/3=2 ,,Fals"

f)-100: (-50)+(-7)= 1 <=> 2-7=1<=>-5=1 ,,Fals"

i)nu se intelege restul...ai putea sa rescrii ca sa te pot ajuta?