Question

64 – n²=0 решить уравнение

Answer 1

$64 - n^2 = 0\ 64 = n^2\ n = sqrt{64}\ n=8$

Answer 2

n = 8, n = -8

Answer 3

$64-n^2=0 \ (8-n)(8+n)=0 \ n=-8 \ n=8$