Question

exercitiull 1 plsss urgennt

Answer 1

Răspuns:

Explicație pas cu pas:

a)

a= 6*[(-30)-(-26)]

a= 6*(-4)

a= - 24

-

b=6*[28+(-9)]

b= 6*19

b=114

-

n= 2a-b

n= 2*(-24)- 114

n= -48-114

n= - 162

-

b)

=6*[9-(-56:(-8)-6]

=6*(9-7-6)

= 6*(-4)

= -24

-

c)

=6*(56-54-5)

= 6*(-3)

= -18

-

d)

=(-54+8*7)²-6³:72+(-4³+9*7)²-(-3)⁶:(-3)⁵

= (-54+56)²-6³:72+(-4³+63)²-3

= (2)²-216:72+(-64+63)²-3

= 4-3+(-1)²-3

= 1+1-3

= 2-3

= -1

-

d)

=-6²:12+(-24+25)¹³-8²:2⁶-(-50+48)²

= 36:12 +(-1)¹³-((2)³)² :2⁶-(-2)²

=3-1-2⁶:2⁶-4

= 3-1-1-4

= 3-2-4

= 1-4

= -3

Answer 2

1.a)n=2a-b

a=6×(-30+24)=6×(-6)=-36

b=6(28-24)=24

n=2×(-36)-24=-72-24=-96

b)16[9+56:(-8)-6]=16(9-7-6)=16×4=64

c)6(56-54-5)=6×(-3)=-18

d)(-57+8×7)²-3(-64+63)²-(-3)⁶:(-3)⁵=

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

e)-36:(-12)+(-24+25)¹³-2⁶:2⁶-(-50+16×3)²=

3+1-1-(-50+48)²=3-4=-1