Question

va rog repede dau 20p!!!!!​

Answer 1

Răspuns:

a.10

b.4

c.781

Explicație pas cu pas:

a.

{2⁴+7•[31+10•(3⁷:3⁵+3²:3¹)-49]}:73=

{16+7•[31+10•(3²+3)-49]}:73=

{16+7•[31+10•(9+3)-49]}:73=

[16+7•(31+10•12-49)]:73=

[16+7•(31+120-49)]:73=

[16+7•(151-49)]:73=

(16+7•102):73=

(16+714):73=

730:73=10

b.

{[(2¹⁵•3¹³•5⁷):(2¹³•3¹²•5⁵)-2⁴•3:8]:49-2}:2019⁰=

[(2²•3¹•5²-16•3:8):49-2]:1=

[(4•3•25-48:8):49-2]:1=

[(12•25-6):49-2]:1=

[(300-6):49-2]:1=

(294:49-2):1=

(6-2):1=

4:1=4

c.

(3•10³+2•10²+4):3²•2+[20+(202:2-51)-2019⁰]=

(3•1000+2•100+4):9•2+[20+(101-51)-1]=

(3000+200+4):9•2+(20+50-1)=

(3200+4):9•2+(70-1)=

3204:9•2+69=

356•2+69=

712+69=781

sper că te-am ajutat