1) 16x^2 = 4916x^2 - 49 = 0(4x + 7)(4x - 7) = 04x + 7 = 0 or 4x - 7 = 0x = -7/4 or x = 7/4
2) x^2 - 2x - 35 = 0(x - 7)(x + 5) = 0x - 7 = 0 or x + 5 = 0x = 7 or x = -5
Ответ: x = -7/4, x = 7/4, x = 7, x = -5.
1) 16x^2 = 49
16x^2 - 49 = 0
(4x + 7)(4x - 7) = 0
4x + 7 = 0 or 4x - 7 = 0
x = -7/4 or x = 7/4
2) x^2 - 2x - 35 = 0
(x - 7)(x + 5) = 0
x - 7 = 0 or x + 5 = 0
x = 7 or x = -5
Ответ: x = -7/4, x = 7/4, x = 7, x = -5.