Question

a) 42∙ 45∙ 4−7∙ 43 =

b) (32)3 =
c) (23)2∙(23)3=

d) (−12)4÷(−12)−2=

e) (−6)−2

Answer 1

Resposta:

a) 7259

b) 96

c) 2967

d) 2

e) −8

Explicação passo-a-passo:

a)

42 × 45 × 4 − 7 × 43 = (42 × 45 ×4) − (7 × 43) = (42 × 180) − 301 = 7560 − 301 = 7259.

b)

32 × 3 = 96.

c)

23 × 2 × 23 × 3 = 46 × 69 = 2967.

d)

(−12) × 4 ÷ (−12) − 2 = [(−12) × 4 ÷ (−12) ] − 2 = [(−48) ÷ (−12)] − 2 = 4 − 2 = 2.

e)

(−6) − 2 = −8.