jayleentorres64 jayleentorres64
  • 03-11-2020
  • Mathematics
contestada

help please I don’t understand it

help please I dont understand it class=

Respuesta :

cam2320
cam2320 cam2320
  • 03-11-2020

Answer:

15) 30

16) 2

for 15 you plug the -4 into the variable (x)

so...

-4(-4)-4-2-5(-4)

you do multiplication first because of PEMDAS

so -4×-4=16 it is not negative because there 2 negatives so they cancel out

then -5×-4=20

then you get this:

16-4-2+20 which equals 30

then with 16 you do the same. you just put the number for y in the variable y and same with x

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