Question

Efectuati:a.5 la puterea 3-2 la puterea 4
b.123 la puterea 0 -1 la puterea 2012
c.5 la puterea 2 ×2 la puterea 2d.(2+9) la puterea 2

Answer 1

Răspuns:

a) 5³-2⁴ = 109

5³ = 5•5•5 = 25•5 = 125

2⁴ = 2•2•2•2 = 4•4 = 16

125 - 16 = 109

b) 123 la 0 -1 la 2012 = 0

123 la 0 = 1

1 la 2012 = 1

1-1 = 0

c) 5²×2² = 100

5² = 5•5 = 25

2² = 2•2 = 4

25×4 = 100

d) (2+9)² = 121

2+9 = 11

11² = 11•11 = 121