Question

va rog 1,2 îmi trebuie urgent​

Answer 1

Explicație pas cu pas:

1. a) 2x(-10)+10=-20+10=-10

b) 3x(-11)+22:(-2)=-33-11=-44

c) 3+(-5)² - (-20):(-4)=3-25-5=-27

d) - 4[-7+(-3²+6)x(-2)]=-4[-7+(-9+6)x(-2)]=-4[-7+(-3)x(-2)]=-4(-7+6)=-4(-1)=4

2. a) - 5x(-6)+(-20)=30-20=10

b) 99-(-5)x(-19)=99-95=4

c) - 10x(12)+(-7)x(-15)=-120+105=225

d) - 2x(3)x(-4)-(-4)x(-3)x(-2)=-6x(-4)-(-4)x(-3)x(-2)=

=24-(-4)x(-3)x(-2)=24-12x(-2)=24+24=48

e) (-2+3-44)x(7-5+8)=-43x10=-430

f) - 100x[(-4)x(5)-(-10)x(2)-(-3)]=-100x(-20+20+3)

=-100x3=-300