Question

Arată că, dacă:
40
a = 7 x 7 - 3 x 3 – 5 x 6
a
b = 6 3:7 + 5 x 4 – 3 x 3
c = 4 2:6 + 5 x 5 + 3 x 1
atunci:
6 xa - 2 x b + c = 4 x a + 3 xb-​

Answer 1

a = 7 x 7 - 3 x 3 – 5 x 6

a = 49-9-30

a = 40-30

a = 10

b = 6 3:7 + 5 x 4 – 3 x 3

b = 9 + 20-9

b = 29-9

b= 20

c = 4 2:6 + 5 x 5 + 3 x 1

c = 7+25+3

c=32+3

c = 35

6 xa - 2 x b + c = 4 x a + 3 xb

6x•10-2x• 20+35 = 4x•10+3x•20

4x•200+35= 7x•200

4 • 40•235= 7•40 •200

37600= 56000

Nu prea am inteles enuntul..