• Asignatura: Matemáticas
  • Autor: danitzacoaquira700
  • hace 2 años

a) (-2)(-8) + (-3)(-5)

b) (-6)(+2) - (+4)(-3)

c) (+2)(-3) – (-4)(+1)

d) (-1) (-5) + (-3)(-2)

e) (+15):(-3) + (+10):(-5)

f) (-18):(-3) – (-10): (-5)

g) (+20):(-10) + (-24):(-12)

h) (-10):(-5) – (+14): (-7)

i) (+25):(-5) + (+30):(-5) - (+4)(-3)

j) (-24):(-8) – (-10): (-5) - (-3)(-2)

Respuestas

Respuesta dada por: rrh0xamphi
1

Explicación paso a paso:

a) (-2)(-8) + (-3)(-5)

=16+(−3)(−5)

=16+15

=31  

b) (-6)(2) - (4)(-3)

=−12−(4)(−3)

=−12−(−12)

=0  

c) (2)(-3) – (-4)(+1)

=−6−(−4)(1)

=−6−(−4)

=−2

d) (-1) (-5) + (-3)(-2)

=5+(−3)(−2)

=5+6

=11

e) (15) ; (-3) + (+10) ; (-5)

=(15)(7)(−5)

=(105)(−5)

=−525

f) (-18) ; (-3) – (-10) ; (-5)

=[(−18)(7)](−5)

=(−126)(−5)

=630

g) (+20) ; (-10) + (-24) ; (-12)

=(20)(−34)(−12)

=(−680)(−12)

=8160

h) (-10) ; (-5) – (+14) ; (-7)

=[(−10)(−19)](−7)

=(190)(−7)

=−1330

i) (+25) ; (-5) + (+30) ; (-5) - (+4)(-3)

=(25)(25)(−5)−(4)(−3)

=(625)(−5)−(4)(−3)

=−3125−(4)(−3)

=−3125−(−12)

=−3113

j) (-24) ; (-8) – (-10) ; (-5) - (-3)(-2)

=[(−24)(2)][(−5−(−3)(−2)]

=−48(−5)−[(−3)(−2)]

=−48(−5−6)

=(−48)(−11)

=528

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