Question

Calculează pătratele nr .a,b,c,d:
a=84:6-3^2

b=105:7

c=(9^2-7^2):4^2

d=14^2-16*12
va roggggg

Answer 1

a=84:6-3^2=14-9=5
a^2=5^2=25

b=105:7=15
b^2=15^2=225

c=(9^2-7^2):4^2=(81-49):16=32:16=2
c^2=2^2=4

d=14^2-16·12=196-192=4
d^2=4^2=16