1. 50 + 3 * ( 2x - 1 ) = 71
50 + 6x - 3 = 71
6x = 71 - 50 + 3
6x = 24
x = 4
2√2 + 3 (2V2+3)(3+2V2) 9+12V2+4*2 17+12V2
₋₋₋₋₋₋₋₋₋₋₋₋ = ___________________ _____________ = ________ = 17+12V2
3- 2√2 (3-2V2)(3+2V2) 9-4*2 1
64 - х^2 = 0
8^2 - х^2 = 0
( 8 - Х )( 8 + Х ) = 0
8 - Х = 0
Х = 8
8 + Х = 0
Х = - 8
Ответ 8 ; - 8