Question

a) (-8)(-4)=

b) -2 [(-9)(-5)=

c) [(-13)(-2)] - [(-5)(-7)]=

d) {[(-5)(-6)][(-2)(-3)]}=

e) 10 [(+9)(-5)]=

f) 5 [(+6)(+8)]=

g) 2+[(6-3)] + [(7+2)]=

h) 9+{(7-5)+ [(4)(3)]}=

i) 4 {[(2)(3)] - [(-8)(+4)]}=

j) (-5-7) - [(-18-(-2)]=

Ayudenme por favor!!​

Answer 1

Explicación paso a paso:

• a) (-8)(-4)=
• = - 8 × - 4
• = 32

• b) -2 [(-9)(-5)=
• = - 2 [( - 9) (- 5)]
• = - 2 [45]
• = - 2 ( 45)
• = - 90

• c) [(-13)(-2)] - [(-5)(-7)]=
• = [26] - [35]
• = 26 - 35
• = -9

• d) {[(-5)(-6)] [(-2)(-3)]}=
• = {[30] [6]}
• = {30 (6)}
• = 30 (6)
• = 180

• e) 10 [(+9)(-5)]=
• = 10 [-45]
• = 10 (-45)
• = - 450

• f) 5 [(+6)(+8)]=
• = 5 [48]
• = 5 (48)
• = 240

• g) 2+[(6-3)] + [(7+2)]=
• = 2 + [3] + [9]
• = 2 + 3 + 8
• = 14

• h) 9+{(7-5)+ [(4)(3)]}=
• = 9 + {2 + [12]}
• = 9 + {2 + 12}
• = 9 + 14
• = 23

• i) 4 {[(2)(3)] - [(-8)(+4)]}=
• = 4 {[6] - [- 32]}
• = 4 {6 +32}
• = 4 (38)
• = 152

• j) (-5-7) - [(-18-(-2)]=
• = (-12) - [(-18 + 2)]
• = (-12) - [-16]
• = - 12 + 16
• = 4