Question

Sabendo que m = -5,n = -7 e p = -12, calcule :
a) m + n - p
b) p - m + n
c) mn - p
d) n + mp

Answer 1

A)m+n-p
(-5)+(-7)-(-12)
-5-7+12=0

B)p-m+n
(-12)-(-5)+(-7)
-12+5-7
-19+5=-14

C)mn-p
(-5).(-7)-(-12)
-35+12=-23

D)n+mp
(-7)+(-5).(-12)
-7+60=53

Answer 2

a) -5+(-7)-(-12)= zero
b) (-12)-(-5)+(-7)= -14
c) (-5)(-7)-(-12)= 47
d) (-7)+60= 53