Question

se considera nr x=15×10+8×5+10 ,y=10÷2+3^2-12÷3 si z=11^2-5×2^2-13^0. calculeaza x,y ,z apoi efectueaza. x-10×y-z 3×x-2×y+5×z x+y+z+10×x×y×z 10×x-y×z+x×y​

Answer 1

Răspuns:

X= 150 + 40 + 10 = 200

Y= 5 + 9 - 4 = 10

Z= 121 - 20 - 1 = 100

1) 200 - 10*10 - 100 = 0

2) 3*200 - 2*10 +5*100 = 1080

3) 200 + 10 + 100 + 10*200*10*100 = 2000310

4) 10*200 - 10*100 + 200*10 = 3000

Answer 2

Explicație pas cu pas:

x=15x10+8x5+10

x=150+40+10

x=200

y=10÷2+3^2-12÷3

y=5+9-4

y=10

z=11^2-5x2^2-13^0

z=121-5x4-1

z=121-20-1

z=100

Deci:

1) x-10×y-z=200-10×10-100=200-100-100=0

2)

3×x-2×y+5×z=3×200-2×10+5×100=600-

20+500=1080

3)

x+y+z+10×x×y×z=200+10+100+10×200×10×100=310+2000000=2000310

4)

10×x-y×z+x×y=10×200-10×100+200×10=

2000-1000+2000=3000