Question

Calculai.
a) (5° +51 +52 +53): 22,
c) (2° +2° +22+ 2 + 32): 22;
b) (7° +7+72-32): 24
d) (3° +31 +32 + 33 -23): 23​

Answer 1

Răspuns:

a)39

b)12

c)6

d)4

Explicație pas cu pas:

a) (5⁰+5¹+5²+5³):2²= (1+5+25+125):4= 156:4=39

b) (7⁰+7¹+7²-3²):2⁴= (1+7+49-9):4= 48:4= 12

c) (2⁰+2¹+2²+2³+3²):2²= (1+2+4+8+9):4= 24:4= 6

d) (3⁰+3¹+3²+3³-2³):2³= (1+3+9+27-8):8= 32:8= 4