Question

решите уравнение 5^2-y^2=0

Answer 1

${5}^{2} - {y}^{2} = 0$

$25 - {y}^{2} = 0$

$25 - 0 = {y}^{2}$

$25 = {y}^{2}$

$y = 5$

Answer 2

5²-y²=0

25-y²=0

y²=25

y=±5