Question

Calculați Pătratul numerelor a,b,c,d:

a=84:6-3^2
b=105:7
c=(9^2-7^2):4^2
d=14^2-16•12

Answer 1

a = 84 : 6 - 3²

a = 14 - 9

a = 5

a² = 5² = 25

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b = 105 : 7

b = 15

b² = 15² = 225

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c = ( 9² - 7² ) : 4²

c = ( 81  - 49 ) : 16

c = 32 : 16

c = 2

c² = 2² = 4

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d = 14² - 16 · 12

d = 196 - 192

d = 4

d² = 4² = 16