Question

Calculati :
a)√82^2-√18^2
b)√65^2-√63^2
c)√113^2-√112^2
d)√85^2-√36^2

Answer 1

a)√82^2-√18^2=82-18=64

b)√65^2-√63^2=65-62=3

c)√113^2-√112^2=113-112=1

d)√85^2-√36^2=85-36=49

Ridicarea la a doua se simplifică cu radicalul simplu.