Question

у во 2 степени - 16/49 степени =0

Answer 1

$y ^{2} - frac{16}{49} =0,$
$y ^{2} = frac{16}{49} ,$
$y= frac{4}{7} ,$
$y=- frac{4}{7} .$
Ответ: $-frac{4}{7} , frac{4}{7} .$