Ответ:
33.9
a) x^2 - 49 = 0 б) y^2 - 100 = 0 в) z^2 - 625 = 0 г) t^2 - 1 = 0
x^2 = 49 y^2 = 100 z^2 = 625 t^2 = 1
x = +7; -7 y = +10; -10 z = +25; -25 t = +1; -1
33.10
a) 4x^2 - 1 = 0 б) 25y^2 - 49 = 0 в) 36a^2 - 25 = 0 г) 144z^2 - 1 = 0
4x^2 = 1 25y^2 = 49 36a^2 = 25 144z^2 = 1
x^2 = 1/4 y^2 = 49/25 a^2 = 25/36 z^2 = 1 /144
x = +1/2; -1/2 y = +7/5; -7/5 a = +5/6; -5/6 z = +1/12; -1/12